TY - JOUR AU - Dimovski, Ivan AU - Tsankov, Yulian TI - Nonlocal Boundary Value Problems for Two-Dimensional Potential Equation on a Rectangle JO - Mathematics and Education in Mathematics PY - 2010 SP - 105 EP - 113 VL - 39 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MEM_2010_39_1_a6/ LA - en ID - MEM_2010_39_1_a6 ER -