@article{DAN_1965_163_4_a3,
     author = {R. Ya. Glagoleva},
     title = {The three cylinder theorem and its applications},
     journal = {Doklady Akademii Nauk},
     pages = {801--804},
     publisher = {mathdoc},
     volume = {163},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_163_4_a3/}
}