%0 Journal Article %A A.S. HOUSEHOLDER %A J.A. CARPENTER %T The Singular Values of Involutory and of Idempotent Matrices. %J Numerische Mathematik %D 1963 %P 234-237 %V 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1963__5_131570/ %F NUMA_1963__5_131570