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@article{DAN_1985_283_2_a1, author = {M. M. Arslanov}, title = {Lattice properties of the degrees below $O'$}, journal = {Doklady Akademii Nauk}, pages = {270--273}, publisher = {mathdoc}, volume = {283}, number = {2}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_283_2_a1/} }
M. M. Arslanov. Lattice properties of the degrees below $O'$. Doklady Akademii Nauk, Tome 283 (1985) no. 2, pp. 270-273. http://geodesic.mathdoc.fr/item/DAN_1985_283_2_a1/