J. Longstaff
ERQ: Controlled Inference and Instruction Techniques for DBMS Query Languages
SIGMOD, 1982.
@inproceedings{SIGMOD-1982-Longstaff, author = "J. Longstaff", booktitle = "{Proceedings of the 12th ACM SIGMOD International Conference on Management of Data}", cdrom = "SIGMOD82/P111.PDF", doi = "10.1145/582353.582371", pages = "111--117", publisher = "{ACM Press}", title = "{ERQ: Controlled Inference and Instruction Techniques for DBMS Query Languages}", year = 1982, }