Seeking info on Vishvakarma and his childern

I am Professor of History at Panjab University and is starting a research project on Vishvakarma and his children. I am right now looking for original sources on Vishvakarma and books or papers written on the deity. Shall be grateful for any help.

Thank you

Dr Mahesh Sharma

Professor of History

panjab University, Chandigarh

Sector 14

E-mail: replymahesh@gmail.com