Luminescence property studies of α-Al2O3 by means of nanosecond time-resolved VUV spectroscopy V. V. Harutunyan, V. A. Gevorkyan and V. N. Makhov Eur. Phys. J. B, 12 1 (1999) 35-38 Published online: 15 November 1999 DOI: 10.1007/s100510050973