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

@Misc{unio,
 howpublished = {\url{https://www.unio.lu/freshwater-mussel/biology/reproduction-cycle/}}
} 

@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{Aldr1999,
 author = {David C. Aldridge},
 year = {1999},
 title = {THE MORPHOLOGY, GROWTH AND REPRODUCTION OF {U}NIONIDAE ({B}IVALVIA) IN A FENLAND WATERWAY},
 journal = {J. Moll. Stud.},
 volume = {65},
 pages = {47-60}
} 

@phdthesis{Jirk1986,
 author = {Kurt J. Jirka},
 year = {1986},
 title = {Reproductive biology and comparative growth rates of selected species of freshwater mussels ({B}ivalvia: {U}nionidae) in the {N}ew and {G}reenbrier {R}ivers, {V}irginia and {W}est {V}irginia},
 school = {Virginia Polytechnic Institute and State University}
} 

@Article{HelaValo2016,
 doi = {10.1002/aqc.2698},
 author = {Samuli Helama and Ilmari Valovirta and Jan Kresten Nielsen},
 year = {2016},
 title = {Growth characteristics of the endangered thick-shelled river mussel (\emph{Unio crassus}) near the northern limit of its natural range},
 journal = {Aquatic Conserv: Mar. Freshw. Ecosyst.}
} 

@Book{Jans2015,
 author = {Jansen, B.},
 year = {2015},
 title  = {Veldgids Slakken en mossels},
 publisher = {KNNV, Zeist},
 pages = {Table 4.2 (page 150), 8.1 (page 300)},
 howpublished = {\url{../../../bib/Kooy2010.html}}
}