TY - JOUR AU - M. V. Kuchuganov TI - Systems of relational transformations: rules and realizability criterion JO - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki PY - 2015 SP - 117 EP - 125 VL - 25 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VUU_2015_25_1_a12/ LA - ru ID - VUU_2015_25_1_a12 ER -