%0 Journal Article %A Grandis, Marco %A Tholen, Walter %T Natural weak factorization systems %J Archivum mathematicum %D 2006 %P 397-408 %V 42 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2006__42_4_a4/ %G en %F ARM_2006__42_4_a4