%0 Journal Article
%A Frans Oort
%A Thomas Zink
%T Families of $p$-divisible groups with constant Newton polygon
%J Documenta mathematica
%D 2002
%P 183-201
%V 7
%U http://geodesic.mathdoc.fr/articles/10.4171/dm/123/
%R 10.4171/dm/123
%F 10_4171_dm_123