P. Ashton
发表
D. Maitre,
B. V. Wilgen,
K. Schachtschneider,
2012
.
A. Botha,
P. Ashton,
P. Oberholster,
2010,
Ecotoxicology and environmental safety.
W. Focke,
A. Botha,
N. Musee,
2011,
Ecotoxicology and environmental safety.
F. Engelbrecht,
J. M. Kahinda,
E. Kapangaziwiri,
2012
.
A. Botha,
P. Ashton,
P. Oberholster,
2008
.
P. Ashton,
P. Oberholster,
L. D. Klerk,
2016
.
P. Ashton,
T. Burridge,
T. Portelli,
1996
.
P. Vanrolleghem,
T. Deksissa,
P. Ashton,
2002
.