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) Peter V. Bozhkov and Sara Von Arnold,Polyethylene glycol promotes maturation but inhibits further development of Picea abies somatic embryos,Physiologia Plantarum,0031-9317,Wiley,1998-10,104,2,211-224,https://cir.nii.ac.jp/crid/1362262946048382848,https://doi.org/10.1034/j.1399-3054.1998.1040209.x