@article{SM_2013_204_8_a5,
     author = {D. A. Slutskii},
     title = {A necessary flexibility condition for a~nondegenerate suspension in {Lobachevsky} 3-space},
     journal = {Sbornik. Mathematics},
     pages = {1195--1214},
     publisher = {mathdoc},
     volume = {204},
     number = {8},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2013_204_8_a5/}
}