@article{ISU_2018_18_4_a5,
     author = {A. O. Vatulyan and D. K. Plotnikov and A. A. Poddubny},
     title = {On some models of indentation for functionally-graded coatings},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {421--432},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2018_18_4_a5/}
}