企业自主研发与合作创新的风险测度及组合优化
余谦,刘雅琴
Risk Measurement and Portfolio Optimization between Independent Development and Cooperative Innovation
YU Qian, LIU Ya-qin
运筹与管理 . 2019, (5): 77 -83 .  DOI: 10.12005/orms.2019.0106