TY - JOUR AU - J. Porter AU - Katharine Gebbie AU - L. November BT - Solar Physics DA - Jan-01-1989 DO - 10.1007/BF00159882 PY - 1989 SP - 309 EP - 341 T2 - Solar Physics TI - Helium resonance lines in the flare of 15 June, 1973 VL - 120 SN - 0038-0938 ER -