conf/sigmod/95 Leonidas Fegaras David Maier Towards an Effective Calculus for Object Query Languages. 47-58 1995 SIGMOD Conference db/conf/sigmod/sigmod95.html#FegarasM95 http://doi.acm.org/10.1145/223784.223789 db/conf/sigmod/sigmod95-5.html SIGMOD95/P047.PDF journals/vldb/AbiteboulB95 conf/vldb/Beech93 conf/icdt/BeeriK90 conf/dbpl/TannenBN91 conf/icdt/TannenBW92 conf/icalp/TannenS91 ... journals/sigmod/BunemanLSTW94 books/mk/Cattell94 conf/bncod/ChanT94 conf/sigmod/CluetD92 conf/sigmod/DadamKABEGLPW86 journals/tkde/DanforthV92 conf/pods/DayalGK82 journals/tkde/Deux90 ... ... journals/tods/Gadia88 conf/pods/ImmermanPS91 conf/vldb/KemperM90 conf/dbpl/LeungMSVVZ93 conf/pods/MaierV93 conf/icdt/Ohori90 journals/tods/OzsoyogluOM87 journals/is/PistorT86 conf/dbpl/Trinder91 ... conf/sigmod/VandenbergD91 ... conf/pods/Wong93