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

@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{SostSost1982,
 doi = {10.23818/actas.01.29},
 author = {Adolfo de Sostoa and Francisco J. de Sostoa},
 year = {1982},
 title = {Edad y crecimiento de \emph{Chondrostoma toxostoma} {V}allot, 1837 en el curso inferior del r\'{i}o Ebro ({T}arragona - {E}spa\~{n}a)},
 journal = {Actas del Primer Congreso Espa\~{n}ol de Limnologia},
 volume = {},
 pages = {}
} 

@Misc{fishbase,
 howpublished = {\url{http://www.fishbase.org/summary/Parachondrostoma-toxostoma}}
}