Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Mariyo F. Watanabe and Makoto Suzuki and Yoshiko Itezono and Kiyoshi Ogawa and Ken-ichi Harada and Hideaki Murata and Noboru Nakayama and Kenji Matsuura,Structural determination of geometrical isomers of microcystins LR and RR from cyanobacteria by two-dimensional NMR spectroscopic techniques,Chemical Research in Toxicology,0893-228X,American Chemical Society (ACS),1990-09-01,3,,473-481,https://cir.nii.ac.jp/crid/1874242817282944768,https://doi.org/10.1021/tx00017a014