Haris Vlavianos/ Mina Karavanta (TRN)/ Michael Longley (FRW)
(1)
Jean-Paul Donnay (EDT)/ Michael J. Barnsley (EDT)/ Paul A. Longley (EDT)
(1)
Michael J De Smith,Michael F Goodchild (University of Califorinia Santa Barbara USA),Paul a Longley
(1)
Terence Brown (EDT)/ Michael Longley (EDT)
(1)