References
=============

The ReRAM PDK from Skywater included academic references that are include here
for posterity.

* X. Guan, S. Yu, H.-S. P. Wong, "A SPICE Compact Model of Metal Oxide Resistive Switching Memory With Variations https://ieeexplore.ieee.org/abstract/document/6296677
* Z. Jiang, S. Yu, Y. Wu, J. Engel, X. Guan, H.-S. P. Wong, "Verilog-A compact model for oxide-based resistive random access memory (RRAM) https://ieeexplore.ieee.org/abstract/document/6931558