TY - JOUR T1 - Observations of the atmospheres and winds of O-stars, LBVs and Wolf-Rayet stars JO - Space Science Reviews PY - 1993/03/01 AU - Crowther PA AU - Willis AJ ED - DO - DOI: 10.1007/bf00771051 PB - Springer Science and Business Media LLC VL - 66 IS - 1-4 SP - 85 EP - 103 Y2 - 2025/04/09 ER -