%0 Journal Article %A Dvurečenskij, Anatolij %T States on unital partially-ordered groups %J Kybernetika %D 2002 %P 297-318 %V 38 %N 3 %U http://geodesic.mathdoc.fr/item/KYB_2002_38_3_a6/ %G en %F KYB_2002_38_3_a6