Consumption and production of digital public goods modeling the impact of different success metrics. - Nicholas P. Radtke; Marco A. Janssen (SpringSim, 2009)

Pattern-Oriented Modeling of Commons Dilemma Experiments. - Marco A. Janssen; Nicholas P. Radtke; Allen Lee (Adapt. Behav., 2009)

What Makes Free/Libre Open Source Software (FLOSS) Projects Successful? An Agent-Based Model of FLOSS Projects. - Nicholas P. Radtke; Marco A. Janssen; James S. Collofello (Int. J. Open Source Softw. Process., 2009)