VizieR Online Data Catalog: 16 Open Clusters UBVI and Gaia DR2 Photometry (perren+, 2020)G. I. Perren,E. E. Giorgi,A. Moitinho,G. Carraro,M. S. Pera,R. VázquezVizieR Online Data Catalog(2020)引用 0|浏览1AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要