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C. N. R. S., Centre de Physique Théorique, Marseille; Université Claude Bernard-Lion I. Translated from Funktsional'nyi Analiz i Ego Prilozheniya, Vol. 30, No. 4, pp. 86–88, October–December, 1996.
Translated by V. Yu. Ovsienko and C. Roger
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Ovsienko, V.Y., Roger, C. Extensions of the Virasoro group and the Virasoro algebra by modules of tensor densities onS 1 . Funct Anal Its Appl 30, 290–291 (1996). https://doi.org/10.1007/BF02509628
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DOI: https://doi.org/10.1007/BF02509628