@article{MZM_1977_21_5_a3,
     author = {A. M. Chebotarev},
     title = {$T$-maps connected with {Hartree's} equation},
     journal = {Matemati\v{c}eskie zametki},
     pages = {605--614},
     year = {1977},
     volume = {21},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1977_21_5_a3/}
}