%0 Journal Article %A Bijakowski, Stephane %T Partial Hasse Invariants, Partial Degrees, and the Canonical Subgroup %J Canadian journal of mathematics %D 2018 %P 742-772 %V 70 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2016-052-8/ %R 10.4153/CJM-2016-052-8 %F 10_4153_CJM_2016_052_8