%0 Journal Article %A Dekrét, Anton %T On canonical forms on non-holonomic and semi-holonomic prolongations of principal fibre bundles %J Czechoslovak Mathematical Journal %D 1972 %P 653-662 %V 22 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101132/ %R 10.21136/CMJ.1972.101132 %G en %F 10_21136_CMJ_1972_101132