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

@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}}
} 

@Techreport{JackFisk1998,
 author = {Jackson, S. and Fisk, L. and Holland, N. and Serena, M. and Middleton, D.},
 year = {1998},
 institution = {Australasian Zoo Keeping},
 title = {Platypus \emph{Ornithorhynchus anatinus} Captive husbandry guidelines},
 howpublished = {\url{http://www.australasianzookeeping.org/Husbandry Manuals/Platypus Husbandry Manual s.pdf}}
} 

@Misc{ADW,
 howpublished = {\url{http://animaldiversity.ummz.umich.edu/accounts/Ornithorhynchus_anatinus}}
} 

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