TY - JOUR AU - M. V. Kasyan AU - V. A. Robsman AU - G. N. Nikogosyan TI - Changes in emission signal spectra during the development of cracks and distraction of rocks JO - Doklady Akademii Nauk PY - 1989 SP - 826 EP - 830 VL - 306 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1989_306_4_a13/ LA - ru ID - DAN_1989_306_4_a13 ER -