https://ntrs.nasa.gov/search.jsp?R=19860054670&hterms=selenium&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3Dselenium
Spectrum of sodiumlike selenium - Se XXIV - NASA Technical Reports Server (NTRS)
High-resolution spectra of Se XXIV have been obtained with a 3-m grazing-incidence spectrograph. Thin plastic foils coated with selenium were irradiated with...
nasa technical reports serverspectrumselenium