TY - JOUR AU - D. Kolev TI - Simple States of Non-Linear Electric Field Model in R2 JO - Mathematica balkanica PY - 1998 SP - 315 VL - 12 IS - 3-4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_1998_12_3-4_a6/ ID - MABA_1998_12_3-4_a6 ER -