SPP with discontinuous function and spectral approximation. Adžić, Nevenka; Ovcin, Zoran — 2003 Novi Sad Journal of Mathematics
Nonlinear SPP with nonlocal boundary conditions and spectral approximation. Adžić, Nevenka; Ovcin, Zoran — 2001 Novi Sad Journal of Mathematics
A coincidence point theorem for multivalued mappings in 2-Menger spaces. Hadžić, Olga; Ovcin, Zoran — 1998 Novi Sad Journal of Mathematics