The DSPNexpress 2.000 Performance and Dependability Modeling Environment. - Christoph Lindemann; Andreas Reuys; Axel Thümmler (FTCS, 1999)

Transient Analysis of Deterministic and Stochastic Petri Nets with Concurrent Deterministic Transitions. - Christoph Lindemann; Axel Thümmler (Perform. Evaluation, 1999)

Quantitative system evaluation with DSPNexpress 2000. - Christoph Lindemann; Axel Thümmler; Alexander Klemm; Marco Lohmann; Oliver P. Waldhorst (Workshop on Software and Performance, 2000)

Performance Analysis of the General Packet Radio Service. - Christoph Lindemann; Axel Thümmler (ICDCS, 2001)

Evaluating the GPRS Radio Interface for Different Quality of Service Profiles. - Christoph Lindemann; Axel Thümmler (Kommunikation in Verteilten Systemen, 2001)

Performance analysis of time-enhanced UML diagrams based on stochastic processes. - Christoph Lindemann; Axel Thümmler; Alexander Klemm; Marco Lohmann; Oliver P. Waldhorst (Workshop on Software and Performance, 2002)

Adaptive performance management for universal mobile telecommunications system networks. - Christoph Lindemann; Marco Lohmann; Axel Thümmler (Comput. Networks, 2002)

A Unified Approach for Improving QoS and Provider Revenue in 3G Mobile Networks. - Christoph Lindemann; Marco Lohmann; Axel Thümmler (Mob. Networks Appl., 2003)

Stochastic modeling and analysis of 3G mobile communication systems. - Axel Thümmler (2003)

Adaptive Call Admission Control for QoS/Revenue Optimization in CDMA Cellular Networks. - Christoph Lindemann; Marco Lohmann; Axel Thümmler (Wirel. Networks, 2004)

Combining Response Surface Methodology with Numerical Models for Optimization of Class-Based Queueing Systems. - Peter Kemper; Dennis Müller 003; Axel Thümmler (DSN, 2005)

A Novel Approach for Fitting Probability Distributions to Real Trace Data with the EM Algorithm. - Axel Thümmler; Peter Buchholz 001; Miklós Telek (DSN, 2005)

Enhancing evolutionary algorithms with statistical selection procedures for simulation optimization. - Peter Buchholz 001; Axel Thümmler (WSC, 2005)

OPEDo: A tool for optimization and performance evaluation of stochastic models. - Peter Buchholz 001; Peter Kemper; Dennis Müller 003; Mathias Stöber; Axel Thümmler (MMB, 2006)

OPEDo: a tool framework for modeling and optimization of stochastic models. - Peter Buchholz 001; Dennis Müller 003; Peter Kemper; Axel Thümmler (VALUETOOLS, 2006)

Combining Response Surface Methodology with Numerical Methods for Optimization of Markovian Models. - Peter Kemper; Dennis Müller 003; Axel Thümmler (IEEE Trans. Dependable Secur. Comput., 2006)

A Novel Approach for Phase-Type Fitting with the EM Algorithm. - Axel Thümmler; Peter Buchholz 001; Miklós Telek (IEEE Trans. Dependable Secur. Comput., 2006)

Efficient phase-type fitting with aggregated traffic traces. - Andriy Panchenko 002; Axel Thümmler (Perform. Evaluation, 2007)