Tai-hoon Kim, Hojjat Adeli, Jianhua Ma, Wai-chi Fang, Byeong-Ho Kang, Byungjoo Park, Frode Eika Sandnes, Kun Chang Lee 
U- and E-Service, Science and Technology 
 - Germany  Springer  2011 
978-3-642-27210-3 
Computer Science
U- and E-Service, Science and Technology