00352    a2200085   4500041000800000100003700008245013200045260000900177773008000186  aeng  avan Asperen de Boer, Johan R. J.  aRecent Developments in Infrared Reflectography of Paintings and its Applications in Art History /cJ. R. J. van Asperen de Boer  c1972  g1972, pp. 1-37.tInternational Council of Museums Committee of Conservation