%0 Journal Article %A Acher, August Mistlb %T An Order-Theoretical Characterization of Varieties of Bands %J Canadian mathematical bulletin %D 1991 %P 368-374 %V 34 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-059-3/ %R 10.4153/CMB-1991-059-3 %F 10_4153_CMB_1991_059_3