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

@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{CardHart2005,
 author = {Cardona, A. and Hartenstein, V. and Romero, R.},
 year = {2005},
 title = {The embryonic development of the triclad \emph{Schmidtea polychroa}},
 journal = {Dev. Genes Evol.},
 howpublished = {\url{http://www.ini.uzh.ch/~acardona/papers/Cardona_2005_embryonic_development_S_polychroa.pdf}},
 volume = {215},
 doi = {10.1007/s00427-004-0455-8},
 pages = {109-131}
} 

@book{BallReyn1981,
 author = {Ball, I. R. and T. B. Reynoldson, T. B.},
 year = {1981},
 title = {British planarians},
 sereis = {Synopses of the British Fauna},
 volume = {19},
 publisher = {Cambridge University Press},
 address = {Cambridge}
}