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

@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{Keen1975,
 author = {W. Hubert Keen},
 year = {1975},
 title = {Breeding and Larval Development of Three Species of \emph{Ambystoma} in Central {K}entucky ({A}mphibia: {U}rodela)},
 journal = {Herpetologica},
 volume = {31(1)},
 pages = {18-21}
} 

@Misc{amphibiaweb,
 howpublished = {\url{https://amphibiaweb.org/cgi/amphib_query?rel-common_name=like&where-scientific_name=Ambystoma+opacum}}
} 

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

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

@Misc{agefotostock,
 howpublished = {\url{https://www.agefotostock.com/age/en/details-photo/marbled-salamander-mole-salamander-ambystoma-opacum-cutout-usa/BWI-BS445796}}
} 

@Misc{srelherp,
 howpublished = {\url{https://srelherp.uga.edu/salamanders/ambopa.htm}}
}