TY - JOUR AU - Petrović Nenad TI - On a difference scheme for singular perturbation problems JO - Novi Sad Journal of Mathematics PY - 1992 SP - 23 EP - 37 VL - 22 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_1992_22_2a_2/ ID - NSJOM_1992_22_2a_2 ER -