TY - JOUR AU - Boris S. Dobronets TI - Approximation of the Sets of Solutions by Parametric Sets JO - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika PY - 2009 SP - 305 EP - 311 VL - 2 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JSFU_2009_2_3_a5/ LA - ru ID - JSFU_2009_2_3_a5 ER -