著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) SINGH V. and GOEL R.M.,On radii of convexity and starlikeness of some classes of functions,Journal of the Mathematical Society of Japan,00255645,一般社団法人 日本数学会,1971,23,2,323-339,https://cir.nii.ac.jp/crid/1390001205114544128,https://doi.org/10.2969/jmsj/02320323