@article{DAN_1975_223_5_a3,
     author = {A. Dzhuraev},
     title = {On a method of investigating systems of first-order equations in three-dimensional space},
     journal = {Doklady Akademii Nauk},
     pages = {1052--1055},
     publisher = {mathdoc},
     volume = {223},
     number = {5},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_5_a3/}
}