@article{104722, author = {Franti\v sek Neuman}, title = {A note on differential equations with periodic solutions}, journal = {Archivum Mathematicum}, volume = {006}, year = {1970}, pages = {189-192}, zbl = {0241.34028}, mrnumber = {0320411}, language = {en}, url = {http://dml.mathdoc.fr/item/104722} }
Neuman, František. A note on differential equations with periodic solutions. Archivum Mathematicum, Tome 006 (1970) pp. 189-192. http://gdmltest.u-ga.fr/item/104722/
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