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

@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{LicaCern2007,
 doi = {10.1080/00288330.2001.9517045},
 author = {Licandeo, R. and Cerna, F. and C\'{e}spedes, R.},
 year = {2007},
 title  = {Age, growth, and reproduction of the roughskin skate, \emph{Dipturus trachyderma},
 from the southeastern {P}acific},
 journal = {ICES Journal of Marine Science},
 volume = {64},
 pages = {141-148}
} 

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