db/journals/dpd/ChenTK96.html Arbee L. P. Chen Pauray S. M. Tsai Jia-Ling Koh Identifying Object Isomerism in Multidatabase Systems. 143-168 DPD/4/P143.pdf 1996 4 Distributed and Parallel Databases 2 db/journals/dpd/dpd4.html#ChenTK96 http://kapis.www.wkap.nl/oasis.htm/107250