@article{MZM_1983_34_3_a8,
     author = {N. A. Bobylev},
     title = {Deformation of functionals having a unique critical point},
     journal = {Matemati\v{c}eskie zametki},
     pages = {387--398},
     publisher = {mathdoc},
     volume = {34},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1983_34_3_a8/}
}