PHOTOELECTRON SPECTROSCOPY OF LASER EXCITED Ca ATOMS M. MEYER, T. PRESCHER, E. v. RAVEN, M. RICHTER, B. SONNTAG, B. R. MÜLLER, W. FIEDLER and P. ZIMMERMANN J. Phys. Colloques, 48 C9 (1987) C9-547-C9-550 DOI: 10.1051/jphyscol:1987991