@article{SEMR_2018_15_a50,
     author = {I. Kh. Sabitov},
     title = {On a problem in the bendings theory of negatively curved surfaces},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {890--893},
     publisher = {mathdoc},
     volume = {15},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2018_15_a50/}
}