TY - JOUR T1 - Wolf-Rayet stars in M33 - II. Optical spectroscopy of emission-line stars in giant HII regions JO - MON NOT R ASTRON SOC PY - 2008/09/21 AU - Drissen L AU - Crowther PA AU - Ubeda L AU - Martin P ED - DO - DOI: 10.1111/j.1365-2966.2008.13633.x VL - 389 IS - 3 SP - 1033 EP - 1040 Y2 - 2025/06/30 ER -