%0 Journal Article %A D. Kolev %T Simple States of Non-Linear Electric Field Model in R2 %J Mathematica balkanica %D 1998 %P 315 %V 12 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_1998_12_3-4_a6/ %F MABA_1998_12_3-4_a6