00300nam a2200121Ia 4500008004100000082001400041100002400055245002200079260004500101300000800146942000700154999001700161190709s9999    xx            000 0 und d  a535 H984T  aHuygens, Christiaan 0aTreatise on light  aNew YorkbDover publications, Inc.c1962  a128  cBK  c41704d41703