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

@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{PresNils1995,
 author = {P. Prestrud and K. Nilssen},
 year = {1995},
 title = {GROWTH, SIZE, AND SEXUAL DIMORPHISM IN ARCTIC FOXES},
 journal = {Journal of Mammalogy},
 volume = {76},
 pages = {522-530}
} 

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

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