TY - JOUR AU - Rabha W. Ibrahim TI - Ulam Stability of Boundary Value Problem JO - Kragujevac Journal of Mathematics PY - 2013 SP - 287 VL - 37 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KJM_2013_37_2_a7/ LA - en ID - KJM_2013_37_2_a7 ER -