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

@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{Pars1993,
 author = {G. R. Parsons},
 year = {1993},
 title  = {Age determination and growth of the bonnethead shark \emph{Sphyrna tiburo}: a comparison of two populations},
 journal = {Marine Biology},
 volume = {117},
 pages = {23-31}
} 

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