@article{MZM_1969_5_3_a7,
     author = {L. P. Shilnikov},
     title = {On the work of {A.} {G.~Maier} on central motions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {335--339},
     year = {1969},
     volume = {5},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1969_5_3_a7/}
}