Ravindra Kotian, Swapna Phillip Mariam, Supreetha Naik, Madhyastha Prashanthi. Effect of heat treatment on the microstructure and hardness of Ni- Cr base metal alloys. The Journal of Indian Prosthodontic Society, March 2008, Vol 8, Issue 1: 17- 21.

Ravindra Kotian, Swapna P. Mariam, Supreetha Naik, Madhyastha Prashanthi. “Effect of heat treatment on the microstructure and hardness of Ni-Cr base metal alloys”, The Journal of Indian Prosthodontic Society, Vol. 8, page 17-21, March 2008. 

 Ravindra Kotian, Supreetha SN, Murali H. "Effect of Heat Treatment on the Corrosion Behaviour of Nickel Chromium (Wiron 99) Alloys" Indian Journal of Dental Advancements, July 2010, Volume 2, Issue 1.