Cowan R. D., 1981, The Theory of Atomic Structure and Spectra, Univ. of Colorado Press
Cutis L.J., Martinson I., Buchta R., 1971, Phys. Scr. 3, 197
Delbouille L., Neven N. and Roland G., 1973, Photometric Atlas of the Solar Spectrum from λ3000 to λ10000, Institut d'Astrophysique, Universitè de Liège
Delbouille L., Roland G., Brault J.W.,Testerman L., 1981, Photometric Atlas of the Solar Spectrum from 1850 to 10000 cm-1, KPNO, Tucson, AZ, USA
Holweger H., Müller E.A., 1974, Solar Phys. 39, 19
Kröll S., Lundberg H., Persson A. and Svanberg S., 1984, Phys. Rev. Lett. 55, 284