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

@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{ArayHirt2003,
 author = {Patricia Araya and Lourdes Hirt and Silvia Flores},
 year = {2003},
 title = {Biología reproductiva y crecimiento de \emph{Pimelodus clarias maculatus} ({L}ac. 1803) ({P}isces, {P}imelodidae) en la zona de influencia del embalse {Y}acyret\'{a}},
 journal = {Ecología Austral},
 volume = {13},
 pages = {83-95}
} 

@Misc{fishbase,
 howpublished = {\url{https://www.fishbase.se/summary/Synodontis-clarias.html}}
}