conf/pods/88 Wen-Chi Hou Gultekin Özsoyoglu Baldeo K. Taneja Statistical Estimators for Relational Algebra Expressions. 276-287 1988 PODS db/conf/pods/pods88.html#HouOT88 http://doi.acm.org/10.1145/308386.308455 db/conf/pods/HouOT88.html journals/anthology/cd1-3:PODS88/P276.PDF journals/anthology/dvd1:text/1-3/PODS88/P276.PDF ... journals/is/Christodoulakis83 ... ... ... ... ... ... ... conf/vldb/OlkenR86 ... journals/tse/Rowe85 ... ...