Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WATANABE Iwao and KAWASHIMA Keiko and SUGH Shiho,The Growth of Introduced Azolla in Japan.,Japanese Journal of Tropical Agriculture,00215260,Japanese Society for Tropical Agriculture,1996,40,3,123-130,https://cir.nii.ac.jp/crid/1390282681336697472,https://doi.org/10.11248/jsta1957.40.123