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

@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{Grob1980,
 author = {Grobler, J. H.},
 year = {1980},
 title = {Body growth and age determination of the sable \emph{Hippotragus niger niger} ({H}arris, 1838)},
 journal = {Koedoe},
 volume = {23},
 pages = {131--156}
} 

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