TY - JOUR AU - E. Lewis AU - L. McNamara AU - H. Michels BT - Solar Physics DA - Jan-04-1972 DO - 10.1007/BF00148090 PY - 1972 SP - 287 EP - 288 T2 - Solar Physics TI - The broadening of the sodium D-lines UR - http://link.springer.com/10.1007/BF00148090 VL - 23 SN - 0038-0938 ER -