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

@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{MalcBari2009,
 doi = {10.1111/j.1095-8649.2009.02426.x},
 author = {E. Malca and J. F. Barimo and J. E. Serafy and P. J. Walsh},
 year = {2009},
 title = {Age and growth of the gulf toadfish \emph{Opsanus beta} based on otolith increment analysis},
 journal = {Journal of Fish Biology},
 volume = {75},
 pages = {1750-1761}
} 

@Misc{fishbase,
 howpublished = {\url{http://www.fishbase.org/summary/Opsanus-beta.html}}
}