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

@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=Ceratotherium_simum}}
} 

@Article{Ditt1972,
 author = {Dittrich, L.},
 doi = {10.1111/j.1748-1090.1972.tb02295.x},
 year = {1972},
 title = {Birth and growth of a male White rhinoceros (\emph{Cerathotherium simum simum}) at {H}anover {Z}oo},
 journal = {Int. Zoo Yb.},
 volume = {12},
 pages = {122-125}
}