@article{ISU_2018_18_4_a4,
     author = {A. O. Vatulyan and A. A. Lyapin and E. L. Kossovich},
     title = {Studying of elastoplastic properties of coal specimens using indentation technique},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {412--420},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ISU_2018_18_4_a4/}
}