With great pleasure and warm sympathy the author dedicates this paper to Academician J. Xanthakis.
KeywordsStar Formation Molecular Cloud Proper Motion Young Star Planetary Nebula
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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- Ambartsumian, V.A. : 1960, Scientific Papers 2, 179.Google Scholar
© D. Reidel Publishing Company, Dordrecht, Holland 1982