共 50 条
- [1] THE RATE AND DIRECTION OF INVENTIVE ACTIVITY - ECONOMIC AND SOCIAL-FACTORS [J]. JOURNAL OF THE PATENT OFFICE SOCIETY, 1962, 44 (09): : 647 - 648
- [2] THE RATE AND DIRECTION OF INVENTIVE ACTIVITY - ECONOMIC AND SOCIAL-FACTORS [J]. RESEARCH MANAGEMENT, 1964, 7 (06): : 431 - 432
- [3] THE RATE AND DIRECTION OF INVENTIVE ACTIVITY - ECONOMIC AND SOCIAL-FACTORS - NATL-BUR-ECON-RES [J]. ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1962, 344 (NOV): : 194 - 195
- [4] THE RATE AND DIRECTION OF INVENTIVE ACTIVITY - ECONOMIC AND SOCIAL-FACTORS - UNIV-NATL-BUR-COMM-ECON-RES [J]. ECONOMIC JOURNAL, 1963, 73 (290): : 312 - 315
- [6] THE RATE AND DIRECTION OF INVENTIVE ACTIVITY - ECONOMIC AND SOCIAL-FACTORS - CONF-UNIV-NATL-BUR-COMM-ECON-RES-COMM-ECON-GROWTH-SOCIAL-SCI-RES-COUNCIL [J]. AMERICAN ECONOMIC REVIEW, 1962, 52 (05): : 1139 - 1142
- [9] Federal funding and the rate and direction of inventive activity [J]. RESEARCH POLICY, 2018, 47 (09) : 1777 - 1800
- [10] THE ECONOMIC AND SOCIAL-FACTORS IN THE LEBANESE CRISIS [J]. JOURNAL OF ARAB AFFAIRS, 1982, 1 (02) : 209 - 244