TY - JOUR AU - V. I. Mitenkov AU - V. N. Rusak TI - Error Estimates for an Approximation to a Characteristic Singular Integral Equation JO - Differencialʹnye uravneniâ PY - 2001 SP - 410 EP - 414 VL - 37 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2001_37_3_a12/ LA - ru ID - DE_2001_37_3_a12 ER -