@article{曹礼德_45, author = {[曹礼德, 姚天顺]}, title = {关系数据库上泛关系查询与中文查询语言的接口}, publisher = {中文信息学报}, year = {1986}, journal = {中文信息学报}, volume = {0}, number = {1}, eid = {45}, pages = {45-49}, keywords = {关系数据库;泛关系;自然语言理解;中文查询语言。}, url = http://jcip.cipsc.org.cn/CN/abstract/article_287.shtml }