... E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do ...
... appl.sci-nnov.ru; za130@appl.sci-nnov.ru) A. V. STEPANOV Pulkovo Observatory, St. Petersburg, Russia (e-mail: stepanov@gao.spb.ru) and S. URPO Е ЕЕ Metsahovi Radio Observatory, Kylmala, Finland (e-mail: Seppo.Urpo@hut.fi) (Received 4 May 2005; accepted 25 ...