著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Popa, M. N. and Pricop, V. V.",The center and focus problem : algebraic solutions and hypotheses,1st ed,CRC Press,2022,Monographs and research notes in mathematics,,9781032017259,,https://cir.nii.ac.jp/crid/1130571691206854920