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Journal of Astrophysics and Astronomy > 2019 > 40 > 5 > 1-13
Space Science Reviews > 2010 > 157 > 1-4 > 249-264
New Astronomy Reviews > 2003 > 47 > 4-5 > 279-283
Journal of Astrophysics and Astronomy > 2019 > 40 > 5 > 1-13
Space Science Reviews > 2010 > 157 > 1-4 > 249-264
New Astronomy Reviews > 2003 > 47 > 4-5 > 279-283