@article{VSPUI_2012_2_a6,
     author = {O. E. Shishanin},
     title = {Modification of {Hill's} equation for the storage rings simplified models},
     journal = {Vestnik Sankt-Peterburgskogo universiteta. Prikladna\^a matematika, informatika, processy upravleni\^a},
     pages = {60--65},
     year = {2012},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSPUI_2012_2_a6/}
}