@article{曾奕:48, author = {曾奕, 李军}, title = {生产者服务贸易的贸易模式研究:基于面板数据的分析}, publisher = {统计研究}, year = {2006}, journal = {统计研究}, volume = {23}, number = {12}, eid = {48}, numpages = {5}, pages = {48}, keywords = {生产者服务贸易 贸易模式 引力模型 面板数据 }, url = {https://tjyj.stats.gov.cn/CN/abstract/article_418.shtml}, doi = {} }