Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
U Gelius and C J Allan and G Johansson and H Siegbahn and D A Allison and K Siegbahn,"The ESCA Spectra of Benzene and the Iso-electronic Series, Thiophene, Pyrrole and Furan",Physica Scripta,0031-8949,IOP Publishing,1971-05-01,3,5,237-242,https://cir.nii.ac.jp/crid/1363107370130025472,https://doi.org/10.1088/0031-8949/3/5/008