@article{UZKU_2014_156_4_a0,
     author = {K. G. Garaev},
     title = {Theory of invariant variational problems and its applications},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {5--13},
     publisher = {mathdoc},
     volume = {156},
     number = {4},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2014_156_4_a0/}
}