Roger Hartley
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Roger Hartley,
Roger Hartley,
1984
.
Roger Hartley,
1983
.
Roger Hartley,
R. Hartley,
1985
.
Roger Hartley,
1985
.
Roger Hartley,
1980
.
Roger Hartley,
1976
.
Roger Hartley,
1994
.
Roger Hartley,
R. Hartley,
1985
.
Roger Hartley,
1991
.
Roger Hartley,
1988
.
Roger Hartley,
Lyn C. Thomas,
D. J. White,
1980
.
Roger Hartley,
A. Elsayed,
Weiqiang Ou,
2005
.
Roger Hartley,
Lyn C. Thomas,
1983
.
Tim O'Shea,
Roger Hartley,
Eileen Scanlon,
1991
.
Piet Kommers,
Philip Barker,
Roger Hartley,
2003
.
Tim O'Shea,
Roger Hartley,
Eileen Scanlon,
1994
.
Tim O'Shea,
Roger Hartley,
Eileen Scanlon,
1995
.
Roger Hartley,
Andrew Ravenscroft,
Rupert Wegerif,
2007
.