@article{10_4064_ap_51_1_229_239,
     author = {L. Markus},
     title = {Control of quasi-differential equations},
     journal = {Annales Polonici Mathematici},
     pages = {229--239},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {1990},
     doi = {10.4064/ap-51-1-229-239},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-51-1-229-239/}
}