Landolt-Börnstein: Numerical Data and Functional Relationships in Science and Technology - New Series " Gruppe/Group 6 Astronomy and Astrophysics " Volume 3 Voigt: Astronomy and Astrophysics. Extension and Supplement to Volume 2 " Interstellar Matter Galaxy UniverseH. H. Voigt, H. Zimmermann, H. W. Duerbeck et al.|Unknown|1996Cited by 0