Abraham, Ajith. Rough set theory : a true landmark in data analysis / edited by Ajith Abraham,Rafael Falcon and Rafael Bello. - / . - NewYork : Springer , 2009. - 320p. : figures ; 24cm . Includes index ISBN: 9783540899211 EUR129.95 Subjects--Index Terms: ROUGH SET THEORY Dewey Class. No.: 511.32 / ABR/R