TY - JOUR AU - M. G. Karatopraklieva TI - On a Nonlocal Boundary Value Problem For an Equation of Mixed Type with Discontinuous Coefficients JO - Mathematica balkanica PY - 2001 SP - 67 VL - 15 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_2001_15_1-2_a6/ ID - MABA_2001_15_1-2_a6 ER -