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|   | References |  
 Books
  
   K.Taki(Ed.), Parallel Processing of Fifth Generation Computers,
	a separate volume of bit, compilation III, 3.8, Kyoritsu Publishing,
	1993. (in Japanese)
   S.Ohsuga, Database and Knowledge Base, Chapter 7, Ohmsha, 1989.
	 (in Japanese)
   J.F.Ullman, Principles of Database and Knowledge-Base Systems,
	Vol.1, Computer Science Press Inc., 1988.
   Y.Masunaga, Relational Database Nyumon, Saiensu-Sha Co.Ltd.,1991.
	 (in Japanese)
  Papers
  
   M.Kawamura and T.Kawamura,"Parallel Database Management System: Kappa",
       Proc. FGCS'94, ICOT, Tokyo, Dec.1994.
   H.J.Schek and M.H.Scholl,"The Relational Model with Relation-Valued 
       Attributes",Inform. Systems Vol.11, No.2, pp.137-147,1986.
   Y.Ishikawa etal.,
	"Design of a Data Manager based on Unnormalized relations",
       In Proc. of the 43rd Annual Convention of IPS Japan, 1M-10, Oct.1991.
	 (in Japanese)
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