@article{DE_1977_13_7_a21, author = {V. I. Zubov}, title = {Struktur des fokussierenden {Magnetfelds}}, journal = {Differencialʹnye uravneni\^a}, pages = {1327--1329}, publisher = {mathdoc}, volume = {13}, number = {7}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1977_13_7_a21/} }