%0 Journal Article %A Putnam, C. R. %T Positive matrices and eigenvectors† %J Glasgow mathematical journal %D 1963 %P 27-30 %V 6 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S2040618500034651/ %R 10.1017/S2040618500034651 %F 10_1017_S2040618500034651