@article{10_21136_CMJ_1970_100966,
     author = {Sova, Miroslav},
     title = {R\'egularit\'e de l'\'evolution lin\'eaire isochrone},
     journal = {Czechoslovak Mathematical Journal},
     pages = {251--302},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1970},
     doi = {10.21136/CMJ.1970.100966},
     mrnumber = {0457890},
     zbl = {0195.15105},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1970.100966/}
}