Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Inagaki Takeshi and Iwanami Yasuo,"Mass Spectra of 3-Alkoxycarbonylmethylene-2(1H)-quinoxalinones and -2H-1, 4-benzoxazin-2-ones",Journal of the Mass Spectrometry Society of Japan,05428645,The Mass Spectrometry Society of Japan,1978,26,4,353-358,https://cir.nii.ac.jp/crid/1390282681474134656,https://doi.org/10.5702/massspec1953.26.353