Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hamada Hideo,Condensation Reaction of Dimethylolureadimethyl Ether in Acidic Solution at Normal Temperature,"The Journal of the Society of Chemical Industry, Japan",0023-2734,The Chemical Society of Japan,1961,64,11,2062-2066,https://cir.nii.ac.jp/crid/1390282680107878528,https://doi.org/10.1246/nikkashi1898.64.11_2062