@article{SIGMA_2022_18_a83,
     author = {Mikhail B. Sevryuk},
     title = {Three {Examples} in the {Dynamical} {Systems} {Theory}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2022},
     volume = {18},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2022_18_a83/}
}