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@article{PORMA_1978__37_3-4_115352, author = {Williams, R.K.}, title = {Some results on continuous flows}, journal = {Portugaliae mathematica}, pages = {217--222}, publisher = {mathdoc}, volume = {37}, number = {3-4}, year = {1978}, mrnumber = {0633028}, zbl = {0463.54040}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1978__37_3-4_115352/} }
Williams, R.K. Some results on continuous flows. Portugaliae mathematica, Tome 37 (1978) no. 3-4, pp. 217-222. http://geodesic.mathdoc.fr/item/PORMA_1978__37_3-4_115352/