%0 Journal Article %A N. Adžić %T Some nonlinear SPP and spectral approximation %J Novi Sad Journal of Mathematics %D 1998 %P 37-46 %V 28 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/NSJOM_1998_28_1a_2/ %F NSJOM_1998_28_1a_2