TY - JOUR AU - S. Gegovska-Zajkova AU - B. Jovanovic TI - Two-Dimensional Spectral Problems Containing Delta Distribution or Conjugation Conditions JO - Mathematica balkanica PY - 2004 SP - 287 VL - 18 IS - 3-4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_2004_18_3-4_a7/ ID - MABA_2004_18_3-4_a7 ER -