Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KUMOOKA Yoshio,Analysis of an Aromatic Petroleum Resin and a Coumarone Resin by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry,Journal of the Mass Spectrometry Society of Japan,13408097,The Mass Spectrometry Society of Japan,2008,56,2,41-48,https://cir.nii.ac.jp/crid/1390282681473804416,https://doi.org/10.5702/massspec.56.41