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

@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}}
} 

@Misc{fishbase,
 howpublished = {\url{https://www.fishbase.se/summary/Urotrygon-aspidura}}
} 

@article{TorrMeji2019,
 doi = {10.7755/FB.117.3.4},
 author = {Katherine Torres-Palacios and Paola A. Mej\'{i}a-Falla and Andr\'{e}s F. Navia and V\'{i}ctor H. Cruz-Escalona and Roberto F\'{e}lix-Uraga and Casimiro Qui\~{n}onez-Vel\'{a}zquez},
 title = {Age and growth parameters of the {P}anamic stingray (\emph{Urotrygon aspidura})},
 year = {2019},
 journal = {Fish. Bull.},
 volume = {117},
 pages = {45-55}
} 

@article{MejiNavi2012,
 doi = {10.1111/j.1095-8649.2012.03237.x},
 author = {Mej\'{i}a-Falla, P. A. and  Navia, A. F. and Cort\'{e}s, E.},
 title = {Reproductive variables of \emph{Urotrygon rogersi} ({B}atoidea: {U}rotrygonidae): a species with a triannual reproductive cycle in the eastern tropical {P}acific {O}cean},
 year = {2012},
 journal = {Journal of Fish Biology},
 volume = {80},
 pages = {1246-1266}
}