1. Proceedings of the IEDM, Washington DC;Ping,1997
2. MIJ-NSR, 1 http://nsr.mihj.org/1/39/complete.html (Article 39);Pankove,1996
3. Proceedings of the IEDM, Washington DC;Gaska,1997
4. AlGaN/GaN HEMTs grown on SiC substrates
5. Group III Nitrides, EMIS Data Reviews No. 11;Strite,1994