TY - JOUR AU - A. M. Minkin AU - A. P. Khromov TI - Оп regularity of self-adjoint boundary conditions JO - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics PY - 2005 SP - 48 EP - 61 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ISU_2005_5_1_a4/ LA - ru ID - ISU_2005_5_1_a4 ER -