@article{ISU_2015_15_2_a3,
     author = {V. A. Klyachin and D. V. Shurkaeva},
     title = {Isoperimetry coefficient for simplex in the problem of approximation of~derivatives},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {151--160},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2015_15_2_a3/}
}