TY - JOUR AU - Christopher Groppi AU - M. Hanson BT - Publications of the Astronomical Society of the Pacific DA - Jan-12-1996 DO - 10.1086/133767 PY - 1996 EP - 575 T2 - Publications of the Astronomical Society of the Pacific TI - Spectroscopy of Dwarf O Stars in the Region 6250 to 7150A UR - http://articles.adsabs.harvard.edu/full/1996PASP..108..575G VL - 108 SN - 0004-6280 ER -