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

@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{AnAge,
 howpublished = {\url{http://genomics.senescence.info/species/entry.php?species=Ovis_ammon}}
} 

@Article{KeepStaf1966,
 author = {Keeper, H. and Staff, J. L.},
 doi = {10.1111/j.1748-1090.1966.tb01703.x},
 year = {1966},
 title = {A NOTE ON THE BREEDING AND HAND-REARING OF A {M}ARCO {P}OLO SHEEP \emph{Ovis ammon poli} AT {L}ONDON {Z}OO},
 journal = {International Zoo Yearbook},
 volume = {6},
 pages = {90-93}
}