%0 Journal Article %A Stefano Kasangian %A Giuseppe Metere %A Enrico M. Vitale %T Split extensions, semidirect product and holomorph of categorical groups %J Homology, homotopy, and applications %D 2006 %P 145-167 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4310/HHA.2006.v8.n1.a4/ %R 10.4310/HHA.2006.v8.n1.a4 %G en %F HHA_2006_8_1_a4