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

@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}}
} 

@phdthesis{Buck2006,
 author = {Amelie B\"{u}cker},
 year = {2006},
 title  = {Age and growth of skates of the genus \emph{Bathyraja} in Argentina},
 school = {University of Bremen}
} 

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