Logic Programming with Strong Negation. - David Pearce 001; Gerd Wagner 001 (ELP, 1989)

Lindenbaum-Algebraic Semantics of Logic Programs. - Gerd Wagner 001 (Nonclassical Logics and Information Processing, 1990)

Ex contradictione nihil sequitur. - Gerd Wagner 001 (IJCAI, 1991)

Vivid Logic and Directly Skeptical Inheritance. - Gerd Wagner 001 (GWAI, 1991)

A Database Needs Two Kinds of Negation. - Gerd Wagner 001 (MFDBS, 1991)

Logic Programming with Strong Negation and Inexact Predicates. - Gerd Wagner 001 (J. Log. Comput., 1991)

Neutralization and Preemtion in Extended Logic Programs. - Gerd Wagner 001 (LPAR, 1993)

Reasoning with Inconsistency in Extended Deductive Databases. - Gerd Wagner 001 (LPNMR, 1993)

Vivid Logic: Knowledge-Based Reasoning with Two Kinds of Negation - Gerd Wagner 001 (Springer, 1994)

Transforming Deductive into Active Databases. - Gerd Wagner 001 (WLP, 1994)

From information systems to knowledge systems. - Gerd Wagner 001 (ISCO, 1995)

Practical Theory and Theory-Based Practice. - Gerd Wagner 001 (ATAL, 1996)

Stable Semantics of Temporal Deductive Databases. - Heinrich Herre; Gerd Wagner 001 (DDLP, 1996)

Logics Based on Knowledge Representation Systems. - Gerd Wagner 001 (Logic, Action, and Information, 1996)

A Logical and Operational Model of Scalable Knowledge- and Perception-Based Agents. - Gerd Wagner 001 (MAAMAW, 1996)

Distributed Diagnosis by Vivid Agents. - Michael Schroeder 001; Gerd Wagner 001 (Agents, 1997)

Multi-Level Security in Multiagent Systems. - Gerd Wagner 001 (CIA, 1997)

Stable Models Are Generated by a Stabel Chain. - Heinrich Herre; Gerd Wagner 001 (J. Log. Program., 1997)

Methodological foundations for agent-based systems. - Michael Fisher 001; Jörg P. Müller; Michael Schroeder 001; Geof Staniford; Gerd Wagner 001 (Knowl. Eng. Rev., 1997)

Foundations of Knowledge Systems: with Applications to Databases and Agents - Gerd Wagner 001 (Kluwer, 1998)

Understanding the Enterprise Information System Technology. - Gerd Wagner 001 (ICEIS, 2000)

Agent-Oriented Analysis and Design of Enterprise Information Systems. - Gerd Wagner 001 (ICEIS, 2000)

Vivid Agents: Theory, Architecture, and Applications. - Michael Schroeder 001; Gerd Wagner 001 (Appl. Artif. Intell., 2000)

Agent-Oriented Enterprise Modeling Based on Business Rules. - Kuldar Taveter; Gerd Wagner 001 (ER, 2001)

A Multi-perspective Methodology for Modelling Inter-enterprise Business Processes. - Kuldar Taveter; Gerd Wagner 001 (ER (Workshops), 2001)

Design Rationale for RuleML: A Markup Language for Semantic Web Rules. - Harold Boley; Said Tabet; Gerd Wagner 001 (SWWS, 2001)

AAAI 2000 Workshop Reports. - Yves Lespérance; Gerd Wagner 001; William P. Birmingham; Kurt D. Bollacker; Alexander Nareyek; J. Paul Walser; David W. Aha; Timothy W. Finin; Benjamin N. Grosof; Nathalie Japkowicz; Robert Holte; Lise Getoor; et al. (AI Mag., 2001)

A UML Profile for External Agent-Object-Relationship (AOR) Models. - Gerd Wagner 001 (AOSE, 2002)

Towards Ontological Foundations for UML Conceptual Models. - Giancarlo Guizzardi; Heinrich Herre; Gerd Wagner 001 (OTM, 2002)

On the General Ontological Foundations of Conceptual Modeling. - Giancarlo Guizzardi; Heinrich Herre; Gerd Wagner 001 (ER, 2002)

How to Design a General Rule Markup Language? - Gerd Wagner 001 (XSW, 2002)

Agent Technologies for Virtual Enterprises in the One-of-a-Kind-Production Industry. - Jeroen W. J. Gijsen; Nicholas B. Szirbik; Gerd Wagner 001 (Int. J. Electron. Commer., 2002)

Agent-Oriented Knowledge Management in Learning Environments: A Peer-to-Peer Helpdesk Case Study. - Renata S. S. Guizzardi; Lora Aroyo; Gerd Wagner 001 (AMKM, 2003)

AOR Modelling and Simulation: Towards a General Architecture for Agent-Based Discrete Event Simulation. - Gerd Wagner 001 (AOIS, 2003)

Modeling Reactive Behavior in ORM. - Terry A. Halpin; Gerd Wagner 001 (ER, 2003)

Agent-Oriented Modeling and Agent-Based Simulation. - Gerd Wagner 001; Florin Tulba (ER (Workshops), 2003)

Web Rules Need Two Kinds of Negation. - Gerd Wagner 001 (PPSWR, 2003)

Rules and Defeasible Reasoning on the Semantic Web. - Grigoris Antoniou; Gerd Wagner 001 (RuleML, 2003)

Rule-based agents for the semantic web. - Jens Dietrich 001; Alexander Kozlenkov; Michael Schroeder 001; Gerd Wagner 001 (Electron. Commer. Res. Appl., 2003)

Where Are the Rules? - Ian Horrocks 001; Jürgen Angele; Stefan Decker; Michael Kifer; Benjamin N. Grosof; Gerd Wagner 001 (IEEE Intell. Syst., 2003)

The Agent-Object-Relationship metamodel: towards a unified view of state and behavior. - Gerd Wagner 001 (Inf. Syst., 2003)

Towards Ontological Foundations for Agent Modelling Concepts Using the Unified Fundational Ontology (UFO). - Giancarlo Guizzardi; Gerd Wagner 001 (AOIS, 2004)

On the ontological foundations of agent concepts. - Giancarlo Guizzardi; Gerd Wagner 001 (CAiSE Workshops (2), 2004)

A Unified Foundational Ontology and some Applications of it in Business Modeling. - Giancarlo Guizzardi; Gerd Wagner 001 (CAiSE Workshops (3), 2004)

An Ontologically Well-Founded Profile for UML Conceptual Models. - Giancarlo Guizzardi; Gerd Wagner 001; Nicola Guarino; Marten van Sinderen (CAiSE, 2004)

On the Foundations of UML as an Ontology Representation Language. - Giancarlo Guizzardi; Gerd Wagner 001; Heinrich Herre (EKAW, 2004)

Towards Radical Agent-Oriented Software Engineering Processes Based on AOR Modeling. - Gerd Wagner 001; Kuldar Taveter (IAT, 2004)

A Defeasible Logic Programming System for the Web. - Grigoris Antoniou; Antonis Bikakis; Gerd Wagner 001 (ICTAI, 2004)

Workshop on Applications of Semantic Web Technologies for E-learning p. - Lora Aroyo; Darina Dicheva; Peter Brusilovsky; Paloma Díaz 001; Vania Dimitrova; Erik Duval; Jim E. Greer; Tsukasa Hirashima; Heinz Ulrich Hoppe; Geert-Jan Houben; Mitsuru Ikeda; Judy Kay; et al. (Intelligent Tutoring Systems, 2004)

A System for Nonmonotonic Rules on the Web. - Grigoris Antoniou; Antonis Bikakis; Gerd Wagner 001 (RuleML, 2004)

The Abstract Syntax of RuleML - Towards a General Web Rule Language Framework. - Gerd Wagner 001; Grigoris Antoniou; Said Tabet; Harold Boley (Web Intelligence, 2004)

A Formal Theory of Conceptual Modeling Universals. - Giancarlo Guizzardi; Gerd Wagner 001; Marten van Sinderen (WSPI, 2004)

Ontologies and the Semantic Web for E-learning (Guest editorial). - Demetrios G. Sampson; Miltiadis D. Lytras; Gerd Wagner 001; Paloma Díaz 001 (J. Educ. Technol. Soc., 2004)

Conceptual Foundations of Artificial Agents - Gerd Wagner 001 (2004)

A General Markup Framework for Integrity and Derivation Rules. - Gerd Wagner 001; Adrian Giurca; Sergey Lukichev (Principles and Practices of Semantic Web Reasoning, 2005)

Towards an Abstract Syntax and Direct-Model Theoretic Semantics for RuleML. - Adrian Giurca; Gerd Wagner 001 (RuleML, 2005)

Rule Modeling and Markup. - Gerd Wagner 001 (Reasoning Web, 2005)

Stable Model Theory for Extended RDF Ontologies. - Anastasia Analyti; Grigoris Antoniou; Carlos Viegas Damásio; Gerd Wagner 001 (ISWC, 2005)

RuleML Position Statement. - Harold Boley; Mike Dean; Benjamin N. Grosof; Michael Kifer; Said Tabet; Gerd Wagner 001 (Rule Languages for Interoperability, 2005)

RDF/RuleML Interoperability. - Harold Boley; Jing Mei; Michael Sintek; Gerd Wagner 001 (Rule Languages for Interoperability, 2005)

OMG Production Rule Representation - Context and Current Status. - Said Tabet; Gerd Wagner 001; Silvie Spreeuwenberg; Paul D. Vincent; Gonzaques Jacques; Christian de Sainte Marie; Jon Pellant; Jim Frank; Jacques Durand (Rule Languages for Interoperability, 2005)

Towards a general web rule language. - Gerd Wagner 001; Carlos Viegas Damásio; Grigoris Antoniou (Int. J. Web Eng. Technol., 2005)

Ontologies, Meta-models, and the Model-Driven Paradigm. - Uwe Aßmann; Steffen Zschaler; Gerd Wagner 001 (Ontologies for Software Engineering and Software Technology, 2006)

Visual Rules Modeling. - Sergey Lukichev; Gerd Wagner 001 (Ershov Memorial Conference, 2006)

Supporting Open and Closed World Reasoning on the Web. - Carlos Viegas Damásio; Anastasia Analyti; Grigoris Antoniou; Gerd Wagner 001 (PPSWR, 2006)

Using Rules and R2ML for Modeling Negotiation Mechanisms in E-Commerce Agent Systems. - Costin Badica; Adrian Giurca; Gerd Wagner 001 (TEAA, 2006)

Towards Sharing Rules Between OWL/SWRL and UML/OCL. - Milan Milanovic; Dragan Gasevic; Adrian Giurca; Gerd Wagner 001; Vladan Devedzic (Electron. Commun. Eur. Assoc. Softw. Sci. Technol., 2006)

Exchanging Policies between Web Service Entities using Rule Languages. - Nima Kaviani; Dragan Gasevic; Marek Hatala; Gerd Wagner 001; Ty Mey Eap (IEEE SCW, 2007)

Business Process Integration by Using General Rule Markup Language. - Milan Milanovic; Nima Kaviani; Dragan Gasevic; Adrian Giurca; Gerd Wagner 001; Vladan Devedzic; Marek Hatala (EDOC, 2007)

An Integrated Rule Modeling Framework. - Sergey Lukichev; Adrian Giurca; Gerd Wagner 001 (GI Jahrestagung (1), 2007)

Model-Driven Engineering of Rules for Web Services. - Marko Ribaric; Dragan Gasevic; Milan Milanovic; Adrian Giurca; Sergey Lukichev; Gerd Wagner 001 (GTTSE, 2007)

Using UML-based Rules for Web Services Modeling. - Sergey Lukichev; Adrian Giurca; Gerd Wagner 001; Dragan Gasevic; Marko Ribaric (ICDE Workshops, 2007)

On Interchange between JBoss Rules and Jess. - Oana Nicolae; Adrian Giurca; Gerd Wagner 001 (IDC, 2007)

Web Rule Languages to Carry Policies. - Nima Kaviani; Dragan Gasevic; Marek Hatala; Gerd Wagner 001 (POLICY, 2007)

Bridging Concrete and Abstract Syntax of Web Rule Languages. - Milan Milanovic; Dragan Gasevic; Adrian Giurca; Gerd Wagner 001; Sergey Lukichev; Vladan Devedzic (RR, 2007)

Towards a Mapping from Java Vocabulary to RDFS. - Ion-Mircea Diaconescu; Gerd Wagner 001 (SYNASC, 2007)

Rule Modeling and Interchange. - Adrian Giurca; Gerd Wagner 001 (SYNASC, 2007)

Sharing Rules between JBoss and Jena. - Oana Nicolae; Ion-Mircea Diaconescu; Adrian Giurca; Gerd Wagner 001 (SYNASC, 2007)

Integration of rules and policies for Semantic Web Services. - Nima Kaviani; Dragan Gasevic; Marek Hatala; David Clement; Gerd Wagner 001 (Int. J. Adv. Media Commun., 2007)

On Code Generation for Derived Associations. - Jens Dietrich 001; Bastian Schenke; Gerd Wagner 001 (Australian Software Engineering Conference, 2008)

Towards a BPMN Semantics Using UML Models. - Oana Nicolae; Mirel Cosulschi; Adrian Giurca; Gerd Wagner 001 (Business Process Management Workshops, 2008)

Computability and Complexity Issues of Extended RDF. - Anastasia Analyti; Grigoris Antoniou; Carlos Viegas Damásio; Gerd Wagner 001 (ECAI, 2008)

Combining Rules and Activities for Modeling Service-Based Business Processes. - Milan Milanovic; Dragan Gasevic; Gerd Wagner 001 (EDOCW, 2008)

What's in a Relationship: An Ontological Analysis. - Giancarlo Guizzardi; Gerd Wagner 001 (ER, 2008)

On the Foundations of Web-Based Registries for Business Rules. - Adrian Giurca; Ion-Mircea Diaconescu; Emilian Pascalau; Gerd Wagner 001 (IDC, 2008)

Towards a Mapping from ERDF(S) to Take Vocabulary. - Ion-Mircea Diaconescu; Adrian Giurca; Gerd Wagner 001; Jens Dietrich 001 (KESE, 2008)

A Multi-agent Environment for Serving Proof Explanations in the Semantic Web. - Grigoris Antoniou; Antonis Bikakis; Polyvios Damianakis; Mixalhs Foukarakis; Giorgos Iacovidis; Marianna Karmazi; Haridimos Kondylakis; Antreas Makridakis; Giorgos Nikiforos; George Papadourakis; Manolis Papoutsakis; Aggeliki Psyharaki; et al. (SETN, 2008)

Verbalising R2ML Rules into SBVR. - Oana Nicolae; Gerd Wagner 001 (SYNASC, 2008)

Sharing OCL Constraints by Using Web Rules. - Milan Milanovic; Dragan Gasevic; Adrian Giurca; Gerd Wagner 001; Vladan Devedzic (Electron. Commun. Eur. Assoc. Softw. Sci. Technol., 2008)

On Interchange between Drools and Jess. - Oana Nicolae; Adrian Giurca; Gerd Wagner 001 (Informatica (Slovenia), 2008)

Extended RDF as a Semantic Foundation of Rule Markup Languages. - Anastasia Analyti; Grigoris Antoniou; Carlos Viegas Damásio; Gerd Wagner 001 (J. Artif. Intell. Res., 2008)

AOR-Simulation.org: cognitive agent simulation. - Gerd Wagner 001; Ion-Mircea Diaconescu (AAMAS (2), 2009)

Towards an Executable Semantics for Activities Using Discrete Event Simulation. - Oana Nicolae; Gerd Wagner 001; Jens Werner (Business Process Management Workshops, 2009)

Validating Auction Business Processes using Agent-based Simulations. - Emilian Pascalau; Adrian Giurca; Gerd Wagner 001 (BPSC, 2009)

Modeling service orchestrations with a rule-enhanced business process language. - Milan Milanovic; Dragan Gasevic; Gerd Wagner 001; Vladan Devedzic (CASCON, 2009)

Agent-Based Simulations with Beliefs and SPARQL-Based Ask-Reply Communication. - Ion-Mircea Diaconescu; Gerd Wagner 001 (MABS, 2009)

Rule-Enhanced Business Process Modeling Language for Service Choreographies. - Milan Milanovic; Dragan Gasevic; Gerd Wagner 001; Marek Hatala (MoDELS, 2009)

Beliefs and Communication, The Basis of Collaborative Agents. - Ion-Mircea Diaconescu; Gerd Wagner 001 (SYNASC, 2009)

Extending Discrete Event Simulation by Adding an Activity Concept for Business Process Modeling and Simulation. - Gerd Wagner 001; Oana Nicolae; Jens Werner (WSC, 2009)

Model transformations to bridge concrete and abstract syntax of web rule languages. - Milan Milanovic; Dragan Gasevic; Adrian Giurca; Gerd Wagner 001; Sergey Lukichev; Vladan Devedzic (Comput. Sci. Inf. Syst., 2009)

Bridging concrete and abstract syntaxes in model-driven engineering: a case of rule languages. - Milan Milanovic; Dragan Gasevic; Adrian Giurca; Gerd Wagner 001; Vladan Devedzic (Softw. Pract. Exp., 2009)

Towards an ontological foundation of discrete event simulation. - Giancarlo Guizzardi; Gerd Wagner 001 (WSC, 2010)

Model-driven engineering of Second-Life-style simulations. - Gerd Wagner 001 (WSC, 2010)

Vocabularies, ontologies, and rules for enterprise and business process modeling and management. - Dragan Gasevic; Giancarlo Guizzardi; Kuldar Taveter; Gerd Wagner 001 (Inf. Syst., 2010)

Can BPMN Be Used for Making Simulation Models? - Giancarlo Guizzardi; Gerd Wagner 001 (EOMAS, 2011)

Modeling and Simulating Organisations. - Oana Nicolae; Gerd Wagner 001 (EOMAS, 2011)

Ontologies and Rules for Enterprise Modeling and Simulation. - Gerd Wagner 001 (EDOCW, 2011)

Panel: New Directions for Conceptual Modeling. - Jeffrey Parsons; Antoni Olivé; Sudha Ram; Gerd Wagner 001; Yair Wand; Eric S. K. Yu (ER, 2011)

Towards an ontological foundation of agent-based simulation. - Giancarlo Guizzardi; Gerd Wagner 001 (WSC, 2011)

Towards simulation of organizational norms. - Oana Nicolae; Gerd Wagner 001 (WSC, 2011)

Conceptual simulation modeling with onto-UML. - Giancarlo Guizzardi; Gerd Wagner 001 (WSC, 2012)

Simurena: a web portal for open educational simulation. - Gerd Wagner 001 (WSC, 2012)

Improving Business Process Models with Agent-Based Simulation and Process Mining. - Fernando Szimanski; Célia Ghedini Ralha; Gerd Wagner 001; Diogo R. Ferreira (BMMDS/EMMSAD, 2013)

Towards Ontological Foundations for the Conceptual Modeling of Events. - Giancarlo Guizzardi; Gerd Wagner 001; Ricardo de Almeida Falbo; Renata S. S. Guizzardi; João Paulo A. Almeida (ER, 2013)

Dispositions and causal laws as the ontological foundation of transition rules in simulation models. - Giancarlo Guizzardi; Gerd Wagner 001 (WSC, 2013)

Exploratory and participatory simulation. - Gerd Wagner 001 (WSC, 2013)

Towards a General Framework for Modeling, Simulating and Building Sensor/Actuator Systems and Robots for the Web of Things. - Ion-Mircea Diaconescu; Gerd Wagner 001 (MORSE@STAF, 2014)

Towards a conceptual model and framework for management games. - Oana Nicolae; Gerd Wagner 001 (WSC, 2014)

Tutorial: information and process modeling for simulation. - Gerd Wagner 001 (WSC, 2014)

Modeling and Simulation of Web-of-Things Systems as Multi-Agent Systems. - Ion-Mircea Diaconescu; Gerd Wagner 001 (MATES, 2015)

Modeling and simulation of web-of-things systems part 1: sensor nodes. - Ion-Mircea Diaconescu; Gerd Wagner 001 (WSC, 2015)

Conceptual modeling: definition, purpose and benefits. - Stewart Robinson 001; Gilbert Arbez; Louis G. Birta; Andreas Tolk; Gerd Wagner 001 (WSC, 2015)

Towards ontological foundations for conceptual modeling: The unified foundational ontology (UFO) story. - Giancarlo Guizzardi; Gerd Wagner 001; João Paulo Andrade Almeida; Renata S. S. Guizzardi (Appl. Ontology, 2015)

Introduction to simulation using JavaScript. - Gerd Wagner 001 (WSC, 2016)

Process modeling for simulation: Observations and open issues. - Gerd Wagner 001; Mamadou D. Seck; Frederic D. McKenzie (WSC, 2016)

Model-Based Development of JavaScript Web Applications. - Gerd Wagner 001 (ICWE Workshops, 2017)

Introduction to information and process modeling for simulation. - Gerd Wagner 001 (WSC, 2017)

An abstract state machine semantics for discrete event simulation. - Gerd Wagner 001 (WSC, 2017)

Sim4edu.com - Web-based simulation for education. - Gerd Wagner 001 (WSC, 2017)

Adding Agent Concepts to Object Event Modeling and simulation. - Gerd Wagner 001; Luis G. Nardin (WSC, 2018)

Process design modeling with extended event graphs. - Gerd Wagner 001 (SummerSim, 2019)

Towards a non-proprietary modeling language for processing network simulation. - Gerd Wagner 001 (SummerSim, 2019)

Object Event Simulation. - Gerd Wagner 001 (SIMULTECH, 2020)

Business Process Modeling And Simulation With DPMN: Resource-Constrained Activities. - Gerd Wagner 001 (WSC, 2020)

Business Process Modeling and Simulation with DPMN: Processing Activities. - Gerd Wagner 001 (WSC, 2021)

Object Event Modeling for DES and IS Engineering. - Gerd Wagner 001 (ER Forum/PhD Symposium, 2022)

Resource Modeling in Business Process Simulation. - Paolo Bocciarelli; Andrea D'Ambrogio; Gerd Wagner 001 (WSC, 2022)

Forty Years of Event Graphs in Research and Education. - Murat M. Gunal; Yahya Ismail Osais; Lee Schruben; Gerd Wagner 001; Enver Yücesan (WSC, 2023)

Event Graphs: Syntax, Semantics, and Implementation. - Murat M. Gunal; Yahya Ismail Osais; Gerd Wagner 001 (WSC, 2023)

An Analysis of the Semantic Foundation of KerML and SysML v2. - João Paulo A. Almeida; Luís Ferreira Pires; Giancarlo Guizzardi; Gerd Wagner 001 (ER, 2024)

A conceptual model and simulation model for phishing (short paper). - Gerd Wagner 001 (JOWO, 2024)

An Ontological Model of the Phishing Attack Process. - Italo Jose da Silva Oliveira; Gerd Wagner 001; Glenda C. M. Amaral; Tiago Prince Sales; Jan-Willem Bullee; Marianne Junger; Dipti Kapoor Sarmah; Maya Daneva; Giancarlo Guizzardi (BPMDS/EMMSAD@CAiSE, 2025)