TY - JOUR AU - R. Klein AU - John Castor BT - The Astrophysical Journal DA - Jan-02-1978 DO - 10.1086/155980 PY - 1978 EP - 902 T2 - The Astrophysical Journal TI - H and He II spectra of Of stars UR - http://adsabs.harvard.edu/full/1978ApJ...220..902K VL - 220 SN - 0004-637X ER -