@article{DAN_1996_346_1_a2,
     author = {V. A. Igoshin},
     title = {On a problem of {E.~Cartan}},
     journal = {Doklady Akademii Nauk},
     pages = {13--14},
     publisher = {mathdoc},
     volume = {346},
     number = {1},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1996_346_1_a2/}
}