TY - JOUR AU - A. S. Pechentsov TI - Regularized traces of boundary problems in case of multiple roots of characteristic polynomial JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 1998 SP - 567 EP - 583 VL - 4 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_1998_4_2_a7/ LA - ru ID - FPM_1998_4_2_a7 ER -