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

@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}}
} 

@techreport{SereBaro2005,
 author = {F. Serena and M. Barone and C. Mancusi and A. J. Abella},
 year = {2005},
 title  = {Reproductive biology, growth and feeding habts of \emph{Raja asterias} {D}elaroche, 1809, from the north {T}yrrhenian and south {L}igurian {S}ea ({I}taly), with some notes on trends in landings},
 institution = {International Council for the Exploration of the Sea},
 volume = {CM 2005/ N:12}
} 

@Misc{fishbase,
 howpublished = {\url{https://www.fishbase.de/summary/Raja-asterias.html}}
}