TY - JOUR AU - V. S. Gritsevich TI - Asymmetric layers and differential operators in the field theory of discontinuous functions in a~two-dimensional domain JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1989 SP - 79 EP - 82 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1989_8_a13/ LA - ru ID - IVM_1989_8_a13 ER -