@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040079,
 author = {Hoshi, Yuichiro},
 issue = {1},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {Jun},
 pages = {23--54},
 title = {Tame-blind extension of morphisms of truncated Barsotti-Tate group schemes},
 volume = {16},
 year = {2009}
}