@article{DAN_1994_335_1_a13,
     author = {S. S. Grigoryan and Guo Xinghai},
     title = {On mathematical modeling of penetrating process of collapsed rocks into reservoir},
     journal = {Doklady Akademii Nauk},
     pages = {59--60},
     publisher = {mathdoc},
     volume = {335},
     number = {1},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_335_1_a13/}
}