conf/pods/90 Phokion G. Kolaitis Moshe Y. Vardi On the Expressive Power of Datalog: Tools and a Case Study. 61-71 1990 PODS db/conf/pods/pods90.html#KolaitisV90 http://doi.acm.org/10.1145/298514.298542 db/conf/pods/KolaitisV90.html journals/anthology/cd1-3:PODS90/P061.PDF journals/anthology/dvd1:text/1-3/PODS90/P061.PDF conf/focs/AjtaiG89 conf/popl/AhoU79 ... ... ... journals/jcss/ChandraH80 journals/jcss/ChandraH82 journals/jlp/ChandraH85 journals/jcss/Cook74 ... journals/tcs/FortuneHW80 ... conf/lics/GaifmanMSV87 ... ... journals/jcss/Immerman82 journals/iandc/Immerman86 ... ... conf/lics/KolaitisV90 conf/pods/LakshmananM89 ... ... conf/pods/Shmueli87 books/cs/Ullman88 books/cs/Ullman89 conf/stoc/Vardi82