@article{DAN_1987_296_1_a10,
     author = {G. P. Cherepanov and M. I. Vorozhtsov and R. M. \`Eigeles},
     title = {On cutting of rocks},
     journal = {Doklady Akademii Nauk},
     pages = {49--53},
     publisher = {mathdoc},
     volume = {296},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_296_1_a10/}
}