@article{10_5817_AM2020_4_199,
     author = {Hayashi, Makoto},
     title = {An improvement of the non-existence region for limit cycles of the {Bogdanov-Takens} system},
     journal = {Archivum mathematicum},
     pages = {199--206},
     publisher = {mathdoc},
     volume = {56},
     number = {4},
     year = {2020},
     doi = {10.5817/AM2020-4-199},
     mrnumber = {4173074},
     zbl = {07285960},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5817/AM2020-4-199/}
}