@article{DAN_1960_133_4_a7,
     author = {Yu. P. Krasovskii},
     title = {The existence of aperiodic flows with free boundaries},
     journal = {Doklady Akademii Nauk},
     pages = {768--770},
     publisher = {mathdoc},
     volume = {133},
     number = {4},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_133_4_a7/}
}