@techreport{Pete2009,
 author = {J.S. Peters},
 year = {2009},
 title = {Kennisdocument donderpad het geslacht Cottus},
 journal = {Sportvisserij Nederland},
 volume = {9},
 series = {Kennisdocument}
} 

@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}}
} 

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

@misc{fishbase,
 howpublished = {\url{https://www.fishbase.se/summary/Cottus-gobio.html}}
}