Tom Head Xia Chen Masayuki Yamamura Susannah Gal Aqueous Computing: A Survey with an Invitation to Participate. 672-681 2002 17 J. Comput. Sci. Technol. 6 http://jcst.ict.ac.cn/cone/cone26.html#paper2 db/journals/jcst/jcst17.html#HeadCYG02