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@article{IVM_2007_6_a0, author = {P. D. Andreev}, title = {Semilinear metric semilattices on $\mathbb R$-trees}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--13}, publisher = {mathdoc}, number = {6}, year = {2007}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2007_6_a0/} }
P. D. Andreev. Semilinear metric semilattices on $\mathbb R$-trees. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (2007), pp. 3-13. http://geodesic.mathdoc.fr/item/IVM_2007_6_a0/