@article{杨书卷:7, author = {杨书卷}, title = {研发活动,时间"竞走"}, publisher = {科技导报}, year = {2011}, journal = {科技导报}, volume = {29}, number = {24}, eid = {7}, numpages = {0}, pages = {7}, keywords = {}, url = {http://www.kjdb.org/CN/abstract/article_8306.shtml}, doi = { } }