共 50 条
- [2] Innovation, patents and trade: A firm-level analysis [J]. CANADIAN JOURNAL OF ECONOMICS-REVUE CANADIENNE D ECONOMIQUE, 2020, 53 (03): : 949 - 981
- [4] Firm-level innovation models [J]. SECOND INTERNATIONAL CONFERENCE ON LEADERSHIP, TECHNOLOGY AND INNOVATION MANAGEMENT (2012), 2013, 75 : 146 - 153