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

@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{SuliIrvi2007,
 doi = {10.1071/MF06048},
 author = {James A. Sulikowski and Sarah B. Irvine and Kate C. DeValerio and John K. Carlson},
 year = {2007},
 title  = {Age, growth and maturity of the roundel skate, \emph{Raja texana},
 from the {G}ulf of {M}exico, {USA}},
 journal = {Marine and Freshwater Research},
 volume = {58},
 pages = {41–53}
} 

@Misc{fishbase,
 howpublished = {\url{http://www.fishbase.org/summary/Rostroraja-texana.html}}
}