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

@Misc{fishbase,
 howpublished = {\url{https://www.fishbase.in/summary/Leuciscus-leuciscus.html}}
} 

@article{Mann1974,
 doi = {10.1111/j.1095-8649.1974.tb04542.x},
 author = {Mann, R. H. K.},
 year = {1974},
 title  = {Observations on the age, growth, reproduction and food of the dace, Leuciscus leuciscus (L.), in two rivers in southern England},
 journal = {Journal of Fish Biology},
 pages = {237–253},
 volume = {6(3)}
} 

@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}}
}