%0 Journal Article %A M. V. Kuchuganov %T Systems of relational transformations: rules and realizability criterion %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2015 %P 117-125 %V 25 %N 1 %U http://geodesic.mathdoc.fr/item/VUU_2015_25_1_a12/ %G ru %F VUU_2015_25_1_a12