Richard Sparks
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Stephen M. Pompea,
Richard Sparks,
2010
.
Richard Sparks,
2002
.
Stephen M. Pompea,
Constance E. Walker,
Richard Sparks,
2011
.
Stephen M. Pompea,
Constance E. Walker,
Richard Sparks,
2006
.
Stephen M. Pompea,
Richard Sparks,
D. M. Isbell,
2008
.
Gregory S. Chirikjian,
Yujian Zhou,
Jackrit Suthakorn,
2004
.
Stephen M. Pompea,
Constance E. Walker,
Richard Sparks,
2008
.
Richard Sparks,
Paul Leenhouts,
2011
.
Richard Sparks,
David Garland,
D. Garland,
2000
.
Tim Newburn,
Richard Sparks,
T. Newburn,
2012
.
Tim Hope,
Richard Sparks,
2000
.
Tim Newburn,
Richard Sparks,
T. Newburn,
2004
.
Richard Sparks,
Ian Loader,
I. Loader,
2001
.
Richard Sparks,
D. J. Dodd,
H. Genn,
1979
.
Richard Sparks,
Ian Loader,
I. Loader,
1998
.
Phillip Brown,
Richard Sparks,
1989
.