@article{NSJOM_2001_31_1a_10, author = {N. Ad\v{z}i\'c and Z. Ovcin}, title = {Nonlinear {SPP} with nonlocal boundary conditions and spectral approxirnation}, journal = {Novi Sad Journal of Mathematics}, pages = {85-91}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {2001}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2001_31_1a_10/} }