@article{10_4064_ap_25_3_249_263,
     author = {M. E. Plis},
     title = {An ordinary differential equation homeomorphic with an essential control system},
     journal = {Annales Polonici Mathematici},
     pages = {249--263},
     publisher = {mathdoc},
     volume = {25},
     number = {3},
     year = {1971},
     doi = {10.4064/ap-25-3-249-263},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-25-3-249-263/}
}