TY - JOUR AU - G. N. Lyalin AU - L. E. Solov'ev TI - Two-photoexcitation of luminescence uranyl crystals by a ruby laser JO - Doklady Akademii Nauk PY - 1969 SP - 73 EP - 75 VL - 186 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1969_186_1_a18/ LA - ru ID - DAN_1969_186_1_a18 ER -