%0 Journal Article %A Alfred Frölicher %A Albert Nijenhuis %T Invariance of Vector Form Opeartions under Mappings. %J Commentarii mathematici Helvetici %D 1960 %P 227-248 %V 34 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1960__34_139194/ %F CMH_1960__34_139194