TY - JOUR AU - V. D. Didenko TI - Para-algebras and approximate solution of singular JO - Doklady Akademii Nauk PY - 1991 SP - 1293 EP - 1297 VL - 316 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1991_316_6_a1/ LA - ru ID - DAN_1991_316_6_a1 ER -