@article{CMFD_2018_64_1_a6,
     author = {A. M. Meirmanov and O. V. Galtsev and O. A. Galtseva},
     title = {Some free boundary problems arising in rock mechanics},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {98--130},
     publisher = {mathdoc},
     volume = {64},
     number = {1},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2018_64_1_a6/}
}