TY - JOUR AU - B. M. Shumilov TI - Local interpolation on a~uniform triangular grid by splines of the fourth degree of smoothness~$C^1$ JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1988 SP - 77 EP - 81 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1988_5_a11/ LA - ru ID - IVM_1988_5_a11 ER -