By Surendiranath R.   Parthasarathy M.   Varghese B.A.   in Astrophysics and Space Science

ISSN:0004-640X|281|4|751-759

Springer Publishing Company ‎(2002)‎

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By Pottasch S. R.   Surendiranath R.   Bernard-Salas J.   in Astronomy & Astrophysics

ISSN:0004-6361|531|issue|A23-A23

Edp Sciences‎(2011)‎

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