Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Shigeru Sasaki and Kiyotoshi Kato and Masaaki Yoshifuji,Synthesis and redox properties of crowded triarylphosphines carrying a nitroxide radical and related compounds,Bulletin of the Chemical Society of Japan,00092673,Tokyo : Chemical Society of Japan,2007,80,9,1791-1798,https://cir.nii.ac.jp/crid/1522543654720496512,