CA II chromospheric emission and rotation of main sequence stars
CA II emission from stellar chromospheres
Ca II Emission from the Core of M15
Ca II emission in Canopus.
Ca II Emission in RZ Cancri
CA II Emission in the Spectrum of γ Ursae Majoris
CA II Emission surface fluxes in active chromosphere stars
Ca II emission variability in BY Draconis.
Ca II H & K Spectra From The National Solar Observatory
Ca II H &K Emission from the Core of M15:Evidence of Binaries
CA II H and K and hydrogen-line variations in V471 Tauri /= BD + 16 deg 516/
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 emission and rotation of the Hyades lower main sequence.
Ca II H and K Filter Photometry on the UVBY System. II. The Catalog of Observations
Ca II H and K Flux Monitoring in Cool Stars: Rotation and Activity Cycles
Ca II H and K Lines in A Type Spectra
CA II H and K lines in A type stellar spectra
CA II H and K measurements made at Mount Wilson Observatory, 1966-1983