TY - BOOK AU - Harutunyan,V.V. AU - Gevorkyan,V.A AU - Grigoryan,N.E. TI - Vacuum Ultra-Violet Luminescence excitation Spectra of a-A1(2)0(3) Single Crystals / T2 - YERPHI-1278(64)-90 PY - 1990/// CY - Yerevan PB - Yerevan Physics Institute KW - Physics ER -