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

@Book{Kooy2010,
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 title  = {Dynamic Energy Budget theory for metabolic organisation},
 publisher = {Cambridge Univ. Press, Cambridge},
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 howpublished = {\url{../../../bib/Kooy2010.html}}
} 

@Incollection{Rahn1991,
 author = {Rahn, H.},
 year = {1991},
 title = {Why birds lay eggs},
 booktitle = {Egg incubation: its effects on embryonic development in birds and reptiles.},
 editor = {Deeming, D. C. and Fergunson, M. W. J.},
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 pages = {345--360}
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@Article{LancRoby2000,
 author = {Lance, B. and Roby, D.},
 year = {2000},
 title = {DIET AND POSTNATAL GROWTH IN RED-LEGGED AND BLACKLEGGED KITTIWAKES: AN INTERSPECIES CROSS-FOSTERING EXPERIMENT},
 journal = {The Auk},
 volume = {117},
 pages = {1016--1028}
} 

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

@Article{PrinPres1991,
 doi = {10.1016/0300-9629(91)90122-S},
 author = {R. Prinzinger and A.Pre{\ss}mar and E. Schleucher},
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 title = {Body temperature in birds},
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}