@article{DAN_1979_249_4_a1,
     author = {A. K. Guts},
     title = {A remark on the {Helmholtz--Lie} problem},
     journal = {Doklady Akademii Nauk},
     pages = {780--783},
     publisher = {mathdoc},
     volume = {249},
     number = {4},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_249_4_a1/}
}