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@article{AL_1989_28_1_a7, author = {Yu. D. Shmidt}, title = {The property of $t$-retraceability and automorphisms of the}, journal = {Algebra i logika}, pages = {105--116}, publisher = {mathdoc}, volume = {28}, number = {1}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1989_28_1_a7/} }
Yu. D. Shmidt. The property of $t$-retraceability and automorphisms of the. Algebra i logika, Tome 28 (1989) no. 1, pp. 105-116. http://geodesic.mathdoc.fr/item/AL_1989_28_1_a7/