The Wang-Buzsaki model uses the Hodgkin-Huxley formalism to describe a single-compartment neuron with sodium and potassium conductances. For the transient sodium current, the activation variable m is assumed fast and substituted by its steady-state function.
Wang XJ, Buzsáki G (1996) Gamma oscillation by synaptic inhibition in a hippocampal interneuronal network model. J. Neurosci. 16: 6402–6413.