@article{DE_1969_5_2_a11,
     author = {V. V. Strygin},
     title = {Complete solvability of multi-dimensional differential equations with potential right-hand side},
     journal = {Differencialʹnye uravneni\^a},
     pages = {331--342},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_2_a11/}
}