%0 Journal Article %A Marshall, Murray A. %T Ramification Theory for Valuations of Arbitrary Rank %J Canadian journal of mathematics %D 1974 %P 908-916 %V 26 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-085-9/ %R 10.4153/CJM-1974-085-9 %F 10_4153_CJM_1974_085_9