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CCD Photometry of QSO 0957+561 A & B for the period 1987–1992 using La Palma archive
L.S. Slavcheva-Mihova, V.L. Oknyanskij, B.M. MihovVolume:
275
Language:
english
Pages:
5
DOI:
10.1023/a:1002720617355
Date:
March, 2001
File:
PDF, 36 KB
english, 2001