Cevdet Dengi Sinan Neftci Dflow: A Workflow Process Management System. 211-216 adbis97/P211.pdf 1997 conf/adbis/97 ADBIS db/conf/adbis/adbis97.html#DengiN97 db/conf/adbis/DengiN97.html journals/sigmod/BreitbartDSSW93 books/mk/elmagarmid92/ChrysanthisR92 journals/dpd/GeorgakopoulosHS95 ... journals/dpd/KrishnakumarS95 ... books/mk/elmagarmid92/WachterR92 conf/icde/WodtkeWWD96