TY - JOUR AU - A. Barnard AU - John Cooper AU - E. Smith BT - Journal of Quantitative Spectroscopy and Radiative Transfer DA - Jan-10-1974 DO - 10.1016/0022-4073(74)90085-5 PY - 1974 SP - 1025 EP - 1077 T2 - Journal of Quantitative Spectroscopy and Radiative Transfer TI - The Broadening of He I lines including ion dynamic corrections, with application to λ4471\r A VL - 14 SN - 00224073 ER -