00874nam0-22003131i-450-99000684260040332120001010000684260FED01000684260(Aleph)000684260FED0100068426020001010d--------km-y0itay50------baitay-------001yyResearch and productivityBoyan Jovanovic and Yaw Nyarko.MilanoFondazione Eni1996.32 p.21 cmNote di lavoro della Fondazione ENI Enrico Mattei24330.9Jovanovic,Boyan252958Nyarko,YawITUNINARICAUNIMARCBK990006842600403321COLLEZ. 1702 (24)28552FSPBCFSPBCResearch and productivity302203UNINAGEN01