@article{DBLP:journals/ci/BeaubouefPB95,
author = {Theresa Beaubouef and
Frederick E. Petry and
Bill P. Buckles},
title = {Extension of the Relational Database and its Algebra with
Rough Set Techniques},
journal = {Computational Intelligence},
volume = {11},
year = {1995},
pages = {233-245},
ee = {http://dx.doi.org/10.1111/j.1467-8640.1995.tb00030.x},
bibsource = {DBLP, http://dblp.uni-trier.de}
}