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@article{IVM_2005_3_a4, author = {V. A. Kolmykov}, title = {Positivity properties of {Cartan--Tits} and {Kac--Moody} forms}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {37--40}, publisher = {mathdoc}, number = {3}, year = {2005}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2005_3_a4/} }
V. A. Kolmykov. Positivity properties of Cartan--Tits and Kac--Moody forms. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (2005), pp. 37-40. http://geodesic.mathdoc.fr/item/IVM_2005_3_a4/