A couple models created from Edelstein et al. 1996 are available at the
BioModels Database in a variety of formats:

Edelstein1996_EPSP_AChEvent (SBML, XML, BIOPAX, CELLML, SCILAB, XPP)

Edelstein1996_EPSP_AChSpecies  (VCELL, SBML, XML, BIOPAX, CELLML, SCILAB, XPP)