Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1998_12_3-4_a6, author = {D. Kolev}, title = {Simple {States} of {Non-Linear} {Electric} {Field} {Model} in {R2}}, journal = {Mathematica balkanica}, pages = {315}, publisher = {mathdoc}, volume = {12}, number = {3-4}, year = {1998}, url = {http://geodesic.mathdoc.fr/item/MABA_1998_12_3-4_a6/} }
D. Kolev. Simple States of Non-Linear Electric Field Model in R2. Mathematica balkanica, Tome 12 (1998) no. 3-4, p. 315. http://geodesic.mathdoc.fr/item/MABA_1998_12_3-4_a6/