Retina Group Attribution Non-Commercial Share Alike Yes University of Pennsylvania, Dept of Neuroscience NITRC Neuron-C Yes Neuron-C is a simulation language for modeling biophysically realistic neural circuits. Neuron-C Attribution Non-Commercial Share Alike, Computational Neuroscience http://www.nitrc.org/projects/neuron-c/, http://www.nitrc.org/projects/neuron-c/