TY  - JOUR
AU  - S. S. Grigoryan
TI  - On the nature of ``super deep'' penetration of solid microparticles in hard materials
JO  - Doklady Akademii Nauk
PY  - 1987
SP  - 1319
EP  - 1323
VL  - 292
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1987_292_6_a9/
LA  - ru
ID  - DAN_1987_292_6_a9
ER  -