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@article{IM2_1999_63_4_a9, author = {I. L. Kantor and A. I. Sirota and A. S. Solodovnikov}, title = {Letter to the editor}, journal = {Izvestiya. Mathematics }, pages = {845}, publisher = {mathdoc}, volume = {63}, number = {4}, year = {1999}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1999_63_4_a9/} }
I. L. Kantor; A. I. Sirota; A. S. Solodovnikov. Letter to the editor. Izvestiya. Mathematics , Tome 63 (1999) no. 4. http://geodesic.mathdoc.fr/item/IM2_1999_63_4_a9/