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

@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{Hold1972,
 author = {M. J. Holden},
 year = {1972},
 title  = {The growth rates of \emph{Raja brachyura},
 \emph{R. clavata} and \emph{R. montaqui} as determined from tagging data},
 journal = {J. Physiol. (Lond.)},
 volume = {34},
 pages = {161--168}
} 

@Misc{AnAge,
 howpublished = {\url{http://genomics.senescence.info/species/entry.php?species=Leucoraja_erinacea}}
} 

@Misc{sharktrust,
 howpublished = {\url{http://www.sharktrust.org/shared/id_guides/blonde_ray_st_id_guide.pdf}}
} 

@Misc{iucn,
 howpublished = {\url{http://www.iucnredlist.org/details/161418/0}}
} 

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

@Misc{ichthyology,
 howpublished = {\url{http://www.flmnh.ufl.edu/fish/Gallery/Descript/LittleSkate/LittleSkate.html}}
}