Author: Martin Wechsler; Munteanu; Peter Schauble; | Publisher: SIGIR'98 : Proceedings of the 21st annual international ACM SIGIR conference on research and development in information retrieval Augustus 24-28, 1998
Author: D. Anggraini, A.S. Nugroho; C. Pratama; I.E. Rozi; V. Prangesjvara; M. Gunawan; | Publisher: ICACSIS'2011: International conference of advanced computer science and information systems, Jakarta, 17th-18th, December 2011