18、Title: Raptorcodes Author(s): Shokrollahi A Source: IEEE TRANSACTIONS ON INFORMATION THEORY Volume: 52 Issue: 6 Pages: 2551-2567 Published: JUN 2006 Times Cited: 84
19、Title: Rudiments of rough sets Author(s): Pawlak Z, Skowron A Source: INFORMATION SCIENCES Volume: 177 Issue: 1 Pages: 3-27 Published: JAN 1 2007 Times Cited: 84