> Multivolume work
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PPM star catalogue 3 Zones -00 to -20 comp. by Ulrich Bastian and Siegfried Röser. In Collab. with L. I. Yagudin and V. V. Nesterov. With contributions from D. D. Polozhentsev
Heidelberg; Berlin; New York: Spektrum, Akad. Verl., 1993
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PPM star catalogue 4 Zones -30 to -80 comp. by Ulrich Bastian and Siegfried Röser. In Collab. with L. I. Yagudin and V. V. Nesterov. With contributions from D. D. Polozhentsev
Heidelberg; Berlin; New York: Spektrum, Akad. Verl., 1993