M. McLaughlin, and P. Malone. OPAALS, volume 67 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, page 161-177. Springer, (2010)
P. Malone, J. McGibney, D. Botvich, and M. McLaughlin. OPAALS, volume 67 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, page 178-191. Springer, (2010)