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@article{IVM_1993_1_a2, author = {Sh. T. Ishmukhametov}, title = {On the distributivity of upper semilattices of degrees lower than~$0'$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {17--20}, publisher = {mathdoc}, number = {1}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1993_1_a2/} }
Sh. T. Ishmukhametov. On the distributivity of upper semilattices of degrees lower than~$0'$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1993), pp. 17-20. http://geodesic.mathdoc.fr/item/IVM_1993_1_a2/