TY - JOUR AU - Adžić Nevenka TI - Layer functions and spectral approximation JO - Novi Sad Journal of Mathematics PY - 1993 SP - 351 EP - 362 VL - 23 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_1993_23_2a_30/ ID - NSJOM_1993_23_2a_30 ER -