@article{DAN_1987_292_6_a14,
     author = {A. K. Vidybida},
     title = {Periodic action-induced modification of the potential function of},
     journal = {Doklady Akademii Nauk},
     pages = {1341--1345},
     publisher = {mathdoc},
     volume = {292},
     number = {6},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_292_6_a14/}
}