@article{10_21136_CMJ_1965_100662,
     author = {H\'ajek, Otomar},
     title = {Sections of dynamical systems in $E^2$},
     journal = {Czechoslovak Mathematical Journal},
     pages = {205--211},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1965},
     doi = {10.21136/CMJ.1965.100662},
     mrnumber = {0176181},
     zbl = {0134.42304},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1965.100662/}
}