On the Semantic Equivalence of Heterogeneous Representations in Multimodel Multidatabase Systems.

http://doi.acm.org/10.1145/141356.141370 db/journals/sigmod/GangopadhyayB91.html Dipayan Gangopadhyay Thierry Barsalou On the Semantic Equivalence of Heterogeneous Representations in Multimodel Multidatabase Systems. 35-39 sigmodR/20-4/P035.pdf 1991 20 SIGMOD Record 4 db/journals/sigmod/sigmod20.html#GangopadhyayB91