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

@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}}
} 

@Article{Laym1991,
 author = {Steven R. Layman},
 year = {1991},
 title = {Life History of the Relict, Duskytail Darter, \emph{Etheostoma} (\emph{Catonotus}) sp., in {L}ittle {R}iver, {T}ennessee},
 journal = {Copeia},
 volume = {1991},
 pages = {471-485}
} 

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