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An extended source of GeV gamma rays coincident with the supernova remnant HB 21

I. Reichardt, E. de Oña-Wilhelmi, J. Rico and R. Yang

A&A, 546 (2012) A21

Published online: 28 September 2012

DOI: 10.1051/0004-6361/201219947

I. Reichardt

E. de Oña-Wilhelmi

J. Rico

R. Yang

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