viXra.org > Gh. Dragan
[1] viXra:1506.0167 submitted on 2015-06-23 10:54:52, (972 unique-IP downloads)
Authors: C. Coanda, Gh. Duta, Gh. Dragan, J. Ilie, I. Ivanescu, F. Smarandache, L. Tutescu, S. Draghici Category: General Mathematics
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