Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ishikawa Mitsuharu,Cytological Studies on Porphyra tenera KJELLM. I,Shokubutsugaku Zasshi,0006-808X,The Botanical Society of Japan,1921,35,419,en206-en218,https://cir.nii.ac.jp/crid/1390282679197633152,https://doi.org/10.15281/jplantres1887.35.206