"Stars Evolution." . . "H II regions (Astrophysics)" . . "Fine structure." . . "Abundance." . . "Sulfur." . . "Neon." . . "Galactic nuclei." . . "Infrared spectra." . . "Argon." . . . . "Line spectra." . . . . . . . . . . . . . "Abundances in galactic HII regions, III G25.4-0.2, G45.5+0.06, M8, S159, and DR22"@en . . . . . . . .