Library of high and mid-resolution spectra in the Ca II H & K, H{alpha}, H{beta}, Na I D_1_, D_2_, and He I D_3_ line regions of F, G, K and M field stars
Library of high and mid-resolution spectra in the Ca II H & K, H{alpha}, H{beta}, Na I D_1_, D_2_, and He I D_3_ line regions of F, G, K and M field stars(English)
