TY - BOOK AU - Katyal Neha AU - Kapoor Avinash Gu. AU - University of Delhi. Faculty of Inter Disciplinary & Applied Science. Deaprtment of Electronc Science ED - University of Delhi. Faculty of Inter Disciplinary & Applied Science. Deaprtment of Electronc Science TI - Investigation of wave mixing in photorefractive materials ( Sillentes) PY - 2012/// KW - ELECTRICAL ENGINEERING ER -