ISIM was mainly written by Andreas Vitalis during a stay at UCSD in Prof. McCammon's group. It would not have been possible without the advice, instructions and contributions of Nathan Baker. The code is somehow also an APBS clone, so that you should check the corresponding page within the APBS documentation for 'implicit authors'. ISIM also uses Mike Holst's hardware abstraction layer (MALOC).
The current author list is: