@article{CTGDC_1967__9_2_243_0, author = {Hilton, Peter}, title = {Filtrations}, journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques}, volume = {9}, year = {1967}, pages = {243-253}, mrnumber = {228562}, zbl = {0204.03003}, language = {en}, url = {http://dml.mathdoc.fr/item/CTGDC_1967__9_2_243_0} }
Hilton, Peter. Filtrations. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 9 (1967) pp. 243-253. http://gdmltest.u-ga.fr/item/CTGDC_1967__9_2_243_0/
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