TY - JOUR AU - Mehri, Bahman AU - Nojumi, Mohammad H. TI - Unique solvability of a linear problem with perturbed periodic boundary values JO - Czechoslovak Mathematical Journal PY - 1999 SP - 351 EP - 362 VL - 49 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMJ_1999__49_2_a11/ LA - en ID - CMJ_1999__49_2_a11 ER -