Mayukh Bhattacharya Pinaki Mazumder Augmentation of SPICE for simulation of circuits containingresonant tunneling diodes. 39-50 2001 20 IEEE Trans. on CAD of Integrated Circuits and Systems 1 http://doi.ieeecomputersociety.org/10.1109/43.905673 db/journals/tcad/tcad20.html#BhattacharyaM01