%0 Journal Article %A Doupovec, Miroslav %T On the underlying lower order bundle functors %J Czechoslovak Mathematical Journal %D 2005 %P 901-916 %V 55 %N 4 %U http://geodesic.mathdoc.fr/item/CMJ_2005_55_4_a6/ %G en %F CMJ_2005_55_4_a6