%0 Journal Article %A Ferrández, Angel %A Naveira, Antonio Martínez %T Normal form of the NK-curvature operators %J Czechoslovak Mathematical Journal %D 1982 %P 404-417 %V 32 %N 3 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1982.101817/ %R 10.21136/CMJ.1982.101817 %G en %F 10_21136_CMJ_1982_101817