%0 Journal Article %A Saquer, J. %A Deogun, J. S. %T Concept Approximations Based on Rough Sets and Similarity Measures %J International Journal of Applied Mathematics and Computer Science %D 2001 %P 655-674 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2001_11_3_a5/ %G en %F IJAMCS_2001_11_3_a5