Author: Bah S.1
Source: Comptes Rendus de l'Academie des Sciences Series I Mathematics, Volume 326, Number 12, June 1998 , pp. 1381-1384(4)
Publisher: Elsevier
Language: French
Document Type: Research article
DOI: 10.1016/S0764-4442(98)80396-0
Affiliations: 1: Universite de Ngaoundere, B.P. 454, Ngaoundere, Cameroun
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