@Misc{Wiki,
 howpublished = {\url{http://en.wikipedia.org/wiki/wiki/Pygocentrus_nattereri}}
} 

@Book{Kooy2010,
 author = {Kooijman, S.A.L.M.},
 year = {2010},
 title  = {Dynamic Energy Budget theory for metabolic organisation},
 publisher = {Cambridge Univ. Press, Cambridge},
 pages = {Table 4.2 (page 150), 8.1 (page 300)},
 howpublished = {\url{../../../bib/Kooy2010.html}}
} 

@Article{DupoLino2007,
 author = {F. Duponchelle and F. Lino and N. Huberts and J. Panfili and J.-F. Renno and E. Baras and J. P. Torrico andR. Dugue and J. Nu\~{n}ez},
 year  = {2007},
 title = {Environment-related life-history trait variations of the red-bellied piranha \emph{Pygocentrus nattereri} in two river basins of the {B}olivian {A}mazon},
 doi = {1111/j.1095-8649.2007.01583.x},
 journal = {Journal of Fish Biology},
 volume = {71},
 pages = {1113–1134}
} 

@Misc{fishbase,
 howpublished = {\url{http://www.fishbase.se/summary/Pygocentrus-nattereri.html}}
}