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

@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{RitzGrieb2010,
 author = {Julia Ritz and Eva Maria Griebeler and Ruth Huber and Marcus Clauss},
 year = {2010},
 title = {Body size development of captive and free-ranging {A}frican spurred tortoises (\emph{Geochelone sulcata}): high plasticity in reptilian growth rates},
 journal = {Herpetological Journal},
 volume = {20},
 pages = {213-216}
} 

@Misc{ADW,
 howpublished = {\url{https://animaldiversity.org/accounts/Geochelone_sulcata/}}
} 

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