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

@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{BraaSmit1967,
 author = {Marvin E. Braasch and Philip W. Smith},
 year = {1967},
 title = {The life history of the slough darter, \emph{Etheostoma gracile},
 ({P}isces, {P}ercidae},
 institution = {Dept Energy and Natural Resources; Illinois Institute for Natural Resources},
 series = {Biological notes},
 volume = {58}
} 

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