1. Verifying SPICE results with hand calculations: handling common discrepancies;Brown;IEEE Trans Educ,1994
2. Hijacked by SPICE;Dowell;IEEE Solid-State Circuits Mag,2011
3. FastHenry circuit solver. Available from: http://www.fastfieldsolvers.com/download.htm.
4. The automatic control systems/robotics problem solver,1990
5. General Electric Corp. SCR handbook. 6th ed. Good general-purpose manual with lots of practical advice on heat sink design, and mounting and cooling techniques for power devices.