Harding, P.T., Sutton, S.L. (eds.) (1985): Woodlice in Britain and Ireland: distribution and habitat. Huntingdon, NERC Institute of Terrestrial Ecology.
Hargeby, A., Erlandsson, J. (2006): Is size-assortative mating important for rapid pigment differentiation in a freshwater isopod? Journal of Evolutionary Biology, 19: 1911-1919.
Hargeby, A., Johansson, J., Ahnesjö, J. (2004):Habitat-specific pigmentation in a freshwater isopod: Adaptive evolution over a small spatiotemporal scale. Evolution, 58: 81-94.