@article{DAN_1995_341_3_a7,
     author = {A. P. Afanas'ev},
     title = {On a class of local variational problems with a degenerate},
     journal = {Doklady Akademii Nauk},
     pages = {317--319},
     year = {1995},
     volume = {341},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_341_3_a7/}
}