00269nam a2200109Ia 4500008004100000041000800041082000800049100001500057245004400072260003500116300000800151211209s1961 xx 000 0 und d aeng aMAC aMACKAY D M aANALOGUE COMPUTING AT ULTRA HIGH SPEED  aLONDONbCHAPMAN AND HALLc1961 a232