RETRACTED: Puratana Aakasha-Yantrika Nirmana Sadhanavasthu (Ancient Aero-mechanical manufacturing materials)
Materials Today: Proceedings (2017) - Comments
doi: 10.1016/j.matpr.2017.07.105  issn: 2214-7853 

Eshwar Reddy Cholleti, Kavya Vaddadi, A.Hemant Kumar Yadav