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@article{FAA_1990_24_1_a16, author = {S. L. Tabachnikov}, title = {Two remarks on the asymptotic {Hopf} invariant}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {84--85}, publisher = {mathdoc}, volume = {24}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1990_24_1_a16/} }
S. L. Tabachnikov. Two remarks on the asymptotic Hopf invariant. Funkcionalʹnyj analiz i ego priloženiâ, Tome 24 (1990) no. 1, pp. 84-85. http://geodesic.mathdoc.fr/item/FAA_1990_24_1_a16/
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