This is the readme for the model associated with the paper:

Golomb D, Donner K, Shacham L, Shlosberg D, Amitai Y, Hansel D (2007)
Mechanisms of Firing Patterns in Fast-Spiking Cortical
Interneurons. PLoS Comput Biol 3:e156

This XPP file was supplied by Dr David Golomb

Usage Instructions:

Load the model with a command like
xppaut gah_fig2c.ode

Start the simulation by clicking on
Initialconds -> (G)o

You will see a reproduction of fig2c: