Distributed modular spatial ecosystem modeling. - Thomas Maxwell; Robert Costanza (Int. J. Comput. Simul., 1995)

An Open Geographic Modeling Environment. - Thomas Maxwell; Robert Costanza (Simul., 1997)

Patuxent landscape model: integrated ecological economic modeling of a wathershed. - Alexey A. Voinov; Robert Costanza; Lisa Waigner; Roelof Boumans; Ferdinando Villa; Thomas Maxwell; Helena Voinov (Environ. Model. Softw., 1999)

Design of multi-paradigm integrating modelling tools for ecological research. - Ferdinando Villa; Robert Costanza (Environ. Model. Softw., 2000)

Modular ecosystem modeling. - Alexey A. Voinov; Carl Fitz; Roelof Boumans; Robert Costanza (Environ. Model. Softw., 2004)

Perceived credibility of Internet encyclopedias. - Ida Kubiszewski; Thomas Noordewier; Robert Costanza (Comput. Educ., 2011)