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- [2] INNOVATION IN LARGE AND SMALL FIRMS - AN EMPIRICAL-ANALYSIS [J]. AMERICAN ECONOMIC REVIEW, 1988, 78 (04): : 678 - 690
- [4] AN EMPIRICAL-ANALYSIS OF COMMUNITY STRUCTURE REGULATION IN PERIPHYTON [J]. OIKOS, 1992, 65 (03) : 419 - 427
- [7] AN EMPIRICAL-ANALYSIS OF FIRM PROCESS AND PRODUCT PATENTING [J]. APPLIED ECONOMICS, 1987, 19 (06) : 743 - 751
- [9] COLLECTION PERFORMANCE - AN EMPIRICAL-ANALYSIS OF NOT-FOR-PROFIT COMMUNITY HOSPITALS [J]. HOSPITAL & HEALTH SERVICES ADMINISTRATION, 1992, 37 (02): : 181 - 192