00254nam a2200109Ia 450000500170000002200140001724500220003126000460005358300220009994200060012199900170012720260716043356.0  a1099-274X  aTECHNOLOGY REVIEW  bMassachusetts Institute of TechnologyaUS  c2/22/02kSANDRA_W  cS  c45958d45958