@article{10_4064_ap76_1_16,
     author = {M. Sabatini},
     title = {Commutativity of flows and
injectivity of nonsingular mappings},
     journal = {Annales Polonici Mathematici},
     pages = {159--168},
     year = {2001},
     volume = {76},
     number = {1-2},
     doi = {10.4064/ap76-1-16},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap76-1-16/}
}