Hierarchical Time Stream Petri Net: A Model for Hypermedia Systems. - Patrick Sénac; Pierre de Saqui-Sannes; Roberto Willrich (Application and Theory of Petri Nets, 1995)

A Formal Framework for the Specification, Analysis and Generation of Standardized Hypermedia Documents. - Roberto Willrich; Patrick Sénac; Michel Diaz; Pierre de Saqui-Sannes (ICMCS, 1996)

Hypermedia Document Design Using the HTSPN Model. - Roberto Willrich; Pierre de Saqui-Sannes; Patrick Sénac; Michel Diaz (MMM, 1996)

Conception formelle de documents hypermedias portables. - Roberto Willrich (1996)

Design of Distributed Multimedia Applications (DAMD). - Wanderley Lopes de Souza; Paulo Nazareno Maia Sampaio; Jean-Marie Farines; Roberto Milton Scheffel; Maria Janilce B. Almeida; Luciano Paschoal Gaspary; Lisandro Zambenedetti Granville; Roberto Willrich; Murilo S. de Camargo; Marcelo Domingos (FM-Trends, 1998)

MUSE: An Environment for the Conception of Java Multimedia Applications. - Luciano Paschoal Gaspary; Maria Janilce B. Almeida; Roberto Willrich (Multim. Tools Appl., 1999)

Multimedia Authoring with Hierarchical Timed Stream Petri Nets and Java. - Roberto Willrich; Pierre de Saqui-Sannes; Patrick Sénac; Michel Diaz (Multim. Tools Appl., 2002)

Implementing Traffic Engineering in MPLS-Based IP Networks with Lagrangean Relaxation. - Roberto Alexandre Dias; Eduardo Camponogara; Jean-Marie Farines; Roberto Willrich; Adriano Campestrini (ISCC, 2003)

Collaborative Web Browsing Tool supporting Audio/Video Interactive Presentations. - Guillermo de Jesús Hoyos-Rivera; Roberto Willrich (WETICE, 2005)

Adaptive information retrieval system applied to digital libraries. - Roberto Willrich; Rafael de Moura Speroni; Christopher Viana Lima; André Luiz de Oliveira Diaz; Sérgio Murilo Penedo (WebMedia, 2006)

CoLab: A New Paradigm and Tool for Collaboratively Browsing the Web. - Guillermo de Jesús Hoyos-Rivera; Roberta Lima-Gomes; Roberto Willrich; Jean-Pierre Courtiat (IEEE Trans. Syst. Man Cybern. Part A, 2006)

An Extensible Co-browsing Environment with Conference Support. - Christopher Viana Lima; Roberto Willrich; Roberta Lima-Gomes; Jean-Pierre Courtiat (WETICE, 2007)

User Profile-Based Authorization Policies for Network QoS Services. - Julio Cesar Royer; Roberto Willrich; Michel Diaz (NCA, 2008)

Quality of Service Specifications: A Semantic Approach. - Achilles Colombo Prudêncio; Roberto Willrich; Michel Diaz; Saïd Tazi 001 (NCA, 2009)

Supporting Collaborative Learning Activities with a Digital Library and Annotations. - Tiago Rios da Rocha; Roberto Willrich; Renato Fileto; Saïd Tazi 001 (WCCE, 2009)

Custom ordering on digital library information retrieval. - Carlos A. Furtado; Roberto Willrich; Renato Fileto; Fernando de Lucca Siqueira; Saïd Tazi 001 (WebMedia, 2009)

A Loosely Coupled Integration Environment for Collaborative Applications. - Roberta Lima-Gomes; Guillermo de Jesús Hoyos-Rivera; Roberto Willrich; Christopher Viana Lima; Jean-Pierre Courtiat (IEEE Trans. Syst. Man Cybern. Part A, 2011)

OurMap: Representing Crowdsourced Annotations on Geospatial Coordinates as Linked Open Data. - André Lins Gonzalez; Diego Izidoro; Roberto Willrich; Celso A. S. Santos (CRIWG, 2013)

A semantic approach for QoS specification of communication services using QoE parameters. - José Cé Júnior; Achilles Colombo Prudêncio; Roberto Willrich; Madalena Pereira da Silva (J. Braz. Comput. Soc., 2013)

System of Quality monitoring for IP Telephony Services. - Murilo Vetter; Roberto Willrich (WebMedia, 2014)

Representação Aberta e Semântica de Anotações de Incidentes em Mapas Web. - André Lins Gonzalez; Roberto Willrich; Diego Izidoro; Celso Alberto Saibel Santos (Braz. J. Inf. Syst., 2014)

Recommending Web Service Based on Ontologies for Digital Repositories. - Anderson Salles; Roberto Willrich (WebMedia, 2015)

Técnica de Recomendação Baseada em Metadados para Repositórios Digitais Voltados ao Ensino. - Marcus Filipi Rosso Casagrande; Gustavo Kozima; Roberto Willrich (Revista Brasileira de Informática na Educ., 2015)

Using Implicit Feedback for Neighbors Selection: Alleviating the Sparsity Problem in Collaborative Recommendation Systems. - Bruno Bandeira Fernandes; Juarez A. P. Sacenti; Roberto Willrich (WebMedia, 2017)

Editorial. - Caetano Traina Júnior; Robson L. F. Cordeiro; Roberto Willrich; Javam C. Machado (J. Inf. Data Manag., 2017)

Hybrid Recommender System Based on Multi-Hierarchical Ontologies. - Juarez A. P. Sacenti; Roberto Willrich; Renato Fileto (WebMedia, 2018)

Frontmatter. - Angelo Brayner; Maristela Holanda; Roberto Willrich; Thales Sehn Körting; Celso A. S. Santos (J. Inf. Data Manag., 2018)

Capture and visualisation of text understanding through semantic annotations and semantic networks for teaching and learning. - Roberto Willrich; Adiel Mittmann; Renato Fileto; Alckmar Luiz dos Santos (J. Inf. Sci., 2020)

Identifying Literary Characters in Portuguese - Challenges of an International Shared Task. - Diana Santos; Roberto Willrich; Marcia Caetano Langfeldt; Ricardo Gaiotto de Moraes; Cristina Mota; Emanoel Pires; Rebeca Schumacher Fuão; Paulo Silva Pereira (PROPOR, 2022)

Knowledge graph summarization impacts on movie recommendations. - Juarez A. P. Sacenti; Renato Fileto; Roberto Willrich (J. Intell. Inf. Syst., 2022)

DIP - Desafio de Identificação de Personagens: objectivo, organização, recursos e resultados. - Diana Santos; Cristina Mota; Emanoel Pires; Marcia Langfeldt; Rebeca Schumacher Fuão; Roberto Willrich (Linguamática, 2023)

Avaliação no Desafio de Identificação de Personagens. - Roberto Willrich; Diana Santos (Linguamática, 2023)