TY - GEN AU - Groth, H G AU - Wellmann, P C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1970-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.332 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1970 TI - Spectrum formation in stars with steady-state extended atmospheres: ER -