D. V. Shurkaeva, “Distortion of the triangle isoperimetricity coefficient under quasiconformal mapping”, Mathematical Physics and Computer Simulation, 23:1 (2020), 22–31
2015
2.
V. A. Klyachin, D. V. Shurkaeva, “Isoperimetry coefficient for simplex in the problem of approximation of derivatives”, Izv. Saratov Univ. Math. Mech. Inform., 15:2 (2015), 151–160