TY - BOOK AU - Groth, H. G., ed. AU - Wellmann, P., ed. ED - International Astronomical Union ED - International Astronomical Union Colloquium ED - International Astronomical Union TI - Spectrum formation in stars with steady-state extended atmospheres: proceedings of the IAU colloquium held at Munchi, Germany, April 16-19, 1969 T2 - National bureau of standards special publications; 332 PY - 1970/// CY - Washington PB - U. S. Government Printing Office KW - Astronomy and astrophysics thesaurus KW - Line formation KW - Stellar atmospheres ER -