TY - JOUR AU - G. Chobanov AU - I. Dimovski TI - Extension of the Duhamel Principle for Time-Nonlocal Boundary Value Problems JO - Mathematica balkanica PY - 2004 SP - 259 VL - 18 IS - 3-4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_2004_18_3-4_a4/ ID - MABA_2004_18_3-4_a4 ER -