A Reference Model and Abstract Syntax for Distributed Database Systems. - G. Fitzgerald; J. O. Jefferys; Jon M. Kerridge; W. R. Pilgrim; H. M. Robinson; G. M. Stacey (BNCOD, 1982)

British Computer Society / CODASYL Data Base Administration Working Group (DBAWG): An Architecture and Language Syntax for Distributed Databases for the Network Model. - H. H. Alexander; T. Beetstra; D. Bell; Stephen J. Cannan; E. G. Dee; P. Doyle; G. Fitzgerald; C. French; J. O. Jefferys; Jon M. Kerridge; W. R. Pilgrim; D. Rabone; et al. (BNCOD, 1984)

British Computer Society / CODASYL Database Administration Working Group (DBAWG): An Access Control System For Database Languages. - Jon M. Kerridge; L. Burnard; Stephen J. Cannan; J. Chapman; M. Davis; P. Doyle; M. Eden; R. A. Elbra; J. O. Jefferys; T. Khallaghi; Gerard A. M. Otten; A. Stone; et al. (BNCOD, 1985)