TY - JOUR AU - P. Wilson BT - Solar Physics DA - Jan-11-1968 DO - 10.1007/BF00147146 PY - 1968 SP - 338 EP - 353 T2 - Solar Physics TI - The structure of a sunspot. IV: A Two-Dimensional Radiative Transfer Analysis of Center-Limb Intensity Profiles VL - 5 SN - 0038-0938 ER -