Inf. Bull. Variable Stars 6019-6021
April 2012

2012IBVS.6019....1H
Magnetic field and spectral variability of the Ofp star CPD-28 2561
Hubrig, S.; Kholtygin, A.; Scholler, M.; Langer, N.; Ilyin, I.; Oskinova, L.
2012IBVS.6020....1K
Apsidal motion of the eccentric eclipsing binary GSC 4487-0347
Kozyreva, V.S.; Kusakin, A.V.; Menke, J.
2012IBVS.6021....1B
Period-age correlations for eclipsing binaries in stellar clusters
Bukowiecki, L.; Maciejewski, G.; Konorski, P.; Errmann, R.
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