@article{MZM_1976_19_1_a14, author = {I. Kh. Sabitov}, title = {Possible generalizations of the {Minagawa--Rado} {Lemma} on the rigidity of a~surface of revolution with a~fixed parallel}, journal = {Matemati\v{c}eskie zametki}, pages = {123--132}, publisher = {mathdoc}, volume = {19}, number = {1}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1976_19_1_a14/} }