%0 Journal Article %A Exel, Ruy %T Hankel Matrices Over Right Ordered Amenable Groups %J Canadian mathematical bulletin %D 1990 %P 404-415 %V 33 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-066-2/ %R 10.4153/CMB-1990-066-2 %F 10_4153_CMB_1990_066_2