TY - JOUR AU - S. A. Nazarov TI - ``Far-field interaction'' of concentrated masses in~two-dimensional Neumann and Dirichlet problems JO - Izvestiya. Mathematics PY - 2023 SP - 61 EP - 112 VL - 87 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_2023_87_1_a3/ LA - en ID - IM2_2023_87_1_a3 ER -