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

@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{EtimKing2002,
 author = {Lawrence Etim and Richard P. King and Mfon T. Udo},
 year = {2002},
 title = {Breeding, growth, mortality and yield of the mudskipper \emph{Periophthalmus barbarus} ({L}inneaus 1766) ({T}eleostei: {G}obiidae) in the {I}mo {R}iver estuary, {N}igeria},
 journal = {Fisheries Research},
 volume = {56},
 pages = {227–238}
} 

@Misc{fishbase,
 howpublished = {\url{https://www.fishbase.de/summary/Periophthalmus-barbarus.html}}
}