Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Omura Akira and Nonaka Tsutomu and Fuchigami Toshio and Ichikawa Eiichi and Odo Keijiro,Cyanamide derivatives. 106. The preparation of 15N-labeled cyanoguanidines.,Bulletin of the Chemical Society of Japan,0009-2673,The Chemical Society of Japan,1977,50,4,914-916,https://cir.nii.ac.jp/crid/1390282679112636800,https://doi.org/10.1246/bcsj.50.914