ON THE CANONICAL REDUCTANTS OF SPACES OF CONSTANT CURVATURE Article Sabinin L.V., Yantranova S.S. Webs and quasigroups (Russian). Kalinin. Gos. Univ., Kalinin. 1984. P. 76-83
ON THE TOPOLOGICAL PROPERTIES OF CONTINUOUS LOOPS IMBEDDED IN GROUPS OF HOMEOMORPHISMS OF THEIR SUPPORTS Article Bulgakov D.N. Webs and quasigroups (Russian). Kalinin. Gos. Univ., Kalinin. 1984. P. 29-32