References for Ca XI

.elvlc file (energy levels)

%energy levels (3,5,17,23,27,31,33,35,37,55,70): Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R., 
1999, NIST Database for Atomic Spectroscopy, Version 2.0, NIST Standard Reference Database 61.
%energy levels (4,7-10,13,14,19-22,24-26,44,52): Crance,M., 1973, Atomic Data, 5, 185
%energy levels (59,60): Fawcett,B.C., Bromage,G.E., Hayes,R.W., 1979, MNRAS, 186, 113
%energy levels (11,50,53,54,58,62): Kastner,S.O., Behring, W.E., Cohen,L., 1975, ApJ, 199, 777
%Theoretical energy levels: Zhang, H. et al., ADNDT, 1987, 37, 17
% produced as part of the Arcetri/Cambridge/NRL atomic data base collaboration
%
% E. Landi 2000

.splups file (collision data)

%collision strengths: Zhang, H. et al., ADNDT, 1987, 37, 17
%produced as part of the Arcetri/Cambridge/NRL atomic data base collaboration
%
% E. Landi 2000

.wgfa file (radiative data)

%energy levels (3,5,17,23,27,31,33,35,37,55,70): Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R.,
1999, NIST Database for Atomic Spectroscopy, Version 2.0, NIST Standard Reference Database 61.