There is a paper about SimPEG, if you use this code, please help our scientific visibility by citing our work!
Cockett, R., Kang, S., Heagy, L. J., Pidlisecky, A., & Oldenburg, D. W. (2015). SimPEG: An open source framework for simulation and gradient based parameter estimation in geophysical applications. Computers & Geosciences.
BibTex:
@article{cockett2015simpeg, title={SimPEG: An open source framework for simulation and gradient based parameter estimation in geophysical applications}, author={Cockett, Rowan and Kang, Seogi and Heagy, Lindsey J and Pidlisecky, Adam and Oldenburg, Douglas W}, journal={Computers \& Geosciences}, year={2015}, publisher={Elsevier} }