8Champa Jayawardana, K. Priyantha Hewagamage, Masashito Hirakawa, A Personalize Information Environment for Digital Libraries, Information Technology and Libraries, vol, 20 No, 4.2001,185-- 195.
9Khalid Rouane,Claude Frasson ,Marc Kaltenbach. A Framework for an Advance Reading Support in the Digital Library Age .computer society, 2003.
10MinoruAshizawa, Hideaki Kikuchi , Yusuke Mishina, Hiromichi Fujisawa ,Minoru Hidaka,Naoko Yamazaki ,and Akito Sakurai.Using Digital Libraries as a Community Hall for Wordwide Information Spiral Development. Systems and Computers inlaoan,Vol, 30.No, 1.1999.