You may also wish to search for items by Shigemasa.
Only one matching reference was found.
Shigemasa, E.; Ueda, K.; Sato, Y.; Sasaki, T.; Yagishita, A., Symmetry-resolved K-shell photoabsorption spectra of free N2 molecules, Phys. Rev. A: Gen. Phys., 1992, 45, 2915-2921. [all data]