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

@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=Okapia_johnstoni}}
} 

@Misc{sandiegozoo,
 howpublished = {\url{http://library.sandiegozoo.org/factsheets/okapi/okapi.htm}}
} 

@Misc{nagonline,
 howpublished = {\url{https://nagonline.net/wp-content/uploads/2016/03/40_Livingston2.pdf}}
}