conf/sigmod/82 Tomasz Imielinski Witold Lipski Jr. A Systematic Approach to Relational Database Theory. 8-14 1982 SIGMOD Conference db/conf/sigmod/sigmod82.html#ImielinskiL82 SIGMOD82/P008.PDF http://doi.acm.org/10.1145/582353.582356 db/conf/sigmod/ImielinskiL82.html journals/tods/AhoBU79 conf/vldb/BancilhonS81 journals/tods/Bernstein76 conf/vldb/BernsteinG80 journals/cacm/Codd70 persons/Codd71a persons/Codd72 journals/tods/Fagin77 journals/tods/FaginMU82 conf/vldb/ImielinskiL81 conf/sigmod/ImielinskiL82a journals/tods/Klug80 journals/tods/Lipski79 conf/sigmod/Nicolas78 ... conf/mfcs/Rissanen78 conf/adbt/Reiter77 ... ...