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

@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{Payn1976,
 author = {A. I. Payne},
 year = {1976},
 title = {The determination of age and growth from the scales in \emph{Barbus liberiensis} ({P}isces, {C}yprinidae)},
 journal = {J. Zool., Lond.},
 volume = {180},
 pages = {455-465}
} 

@Misc{fishbase,
 howpublished = {\url{https://www.fishbase.de/summary/5313}}
}