共 50 条
- [22] R&D challenges of pulp and paper industry PAPERI JA PUU-PAPER AND TIMBER, 2004, 86 (02): : 61 - 61
- [25] The implications of debt heterogeneity for R&D investment and firm performance ACADEMY OF MANAGEMENT JOURNAL, 2008, 51 (01): : 165 - 181
- [28] R&D INVESTMENT, PROFITABILITY UNCERTAINTY AND FIRM'S VALUATION PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON FINANCE AND ECONOMICS 2016, 2016, : 267 - 285