TY - JOUR AU - P. Wilson AU - P. McIntosh BT - Solar Physics DA - 1969-12 DO - 10.1007/BF00145525 PY - 1969 SP - 370 EP - 383 T2 - Solar Physics TI - Structure of a sunspot. V: What is the Wilson Effect? UR - http://link.springer.com/10.1007/BF00145525 VL - 10 SN - 0038-0938 ER -