Franci A, Drion G, Sepulchre R (2018) Robust and tunable bursting requires slow positive feedback. J Neurophysiol 119:1222-1234
http://dx.doi.org/10.1152/jn.00804.2017

have made their "julia" code available at their github repository:

https://github.com/NeurAlessio/eNeuro2017-Code