Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HASHIGUCHI Hideko Sakagawa,The uniton numbers of the harmonic 2-spheres in Gr2(C4),Journal of the Mathematical Society of Japan,00255645,The Mathematical Society of Japan,1997,49,1,81-105,https://cir.nii.ac.jp/crid/1390001205114700544,https://doi.org/10.2969/jmsj/04910081