@article{VSGU_2015_6_a6,
     author = {S. S. Ezhak},
     title = {On a minimization problem for a functional generated by the {Sturm{\textendash}Liouville} problem with integral condition on the potential},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {57--61},
     year = {2015},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2015_6_a6/}
}