Gerd Wagner 0001 Simurena: a web portal for open educational simulation. 141:1-141:12 2012 WSC https://doi.org/10.1109/WSC.2012.6465217 http://dl.acm.org/citation.cfm?id=2429948 conf/wsc/2012 db/conf/wsc/wsc2012.html#Wagner12