@article{MZM_1989_45_4_a5,
     author = {V. V. Kozlov},
     title = {Polynomial integrals of dynamical systems with one-and-a-half degrees of freedom},
     journal = {Matemati\v{c}eskie zametki},
     pages = {46--52},
     publisher = {mathdoc},
     volume = {45},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_4_a5/}
}