@article{IVM_2017_2_a5,
     author = {V. M. Savchin and S. A. Budochkina},
     title = {On invariance of functionals and {Euler--Lagrange} equations corresponding to them},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {58--64},
     publisher = {mathdoc},
     number = {2},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2017_2_a5/}
}