Some High Level Language Constructs for Data of Type Relation.

Joachim W. Schmidt Some High Level Language Constructs for Data of Type Relation. 247-261 TODS2/P247.PDF 1977 2 ACM Trans. Database Syst. 3 db/journals/tods/tods2.html#Schmidt77 http://doi.acm.org/10.1145/320557.320568 db/journals/tods/Schmidt77.html ... journals/cacm/BoyceCKH75 journals/tse/Hansen75 conf/sigmod/ChamberlinB74 journals/cacm/Codd70 conf/sigmod/Codd71 journals/acta/Earley73 ... ... journals/sigplan/LiskovZ74 ... ... conf/sigmod/SchmidS75 ... ... journals/acta/Wirth71 ...