Author: El-Wakil S. Abulwafa Essam Elgarayhi A. El-Shewy E. Mahmoud Abeer Tawfik Ashraf
Publisher: Springer Publishing Company
ISSN: 0004-640X
Source: Astrophysics and Space Science, Vol.350, Iss.2, 2014-04, pp. : 591-598
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