C6H - Astronomical study of its fine and hyperfine structure
Ca depletion and the presence of dust in large scale nebulosities in radiogalaxies (I)
Ca depletion and the presence of dust in large scale nebulosities in radiogalaxies (II)
CA I 6162 A line oscillations observed in a solar active region
Ca I absorption and the electron densities in interstellar clouds.
CA i Lines in Auto-Ionization in the Solar Spectrum.
Ca II 8542 Å sunspot oscillations observed with THEMIS
CA II absolute line profiles of southern late-type stars
CA II absorption lines in the spectrum of the quasar PKS 2020-370 due to galactic material in the group Klemola 31
Ca II activity and rotation in F-K evolved stars
Ca II and Mg II Resonance Lines in Non-Homogeneous Chromospheres
Ca II and Na I Quasar Absorption-Line Systems in an Emission-Selected Sample of SDSS DR7 Galaxy/Quasar Projections: I. Sample Selection
CA II chromospheric emission and rotation of main sequence stars
CA II emission from stellar chromospheres
CA II Emission surface fluxes in active chromosphere stars
Ca II H & K Spectra From The National Solar Observatory
Ca II H and K and Hα emissions in chromospherically active binary systems (RS Canum Venaticorum and BY Draconis)
CA II H and K chromospheric emission in F- and G-type stars
Ca II H and K Chromospheric Emission Lines in Late K and M Dwarfs
CA II H and K lines in A type stellar spectra