共 50 条
- [1] RESEARCH PRODUCTIVITY OF ACADEMIC MATERIALS SCIENTISTS [J]. JOM-JOURNAL OF METALS, 1975, 27 (06): : 28 - 29
- [3] RESEARCH PRODUCTIVITY OVER THE LIFE-CYCLE - EVIDENCE FOR ACADEMIC SCIENTISTS [J]. AMERICAN ECONOMIC REVIEW, 1991, 81 (01): : 114 - 132