00333nam a2200121Ia 4500082001900000100001900019245006700038260002900105300000600134490003200140500000500172700003400177  a510.8bN669.CM  aNielsen, Jakob  aCollected mathematical papersbcEd. by Vagn Lundsgaard Hansen  aBostonbBirkhauserc1986  a   aContemporary Mathematicians  a  aHansen, Vagn Lundsgaard ; ed.