Reference

Dan Luca Danielopol, J. Dreher, A. Gunatilaka, M. Kaiser, R. Niederreiter, Peter Pospisil, M. Creuze des Chatelliers, Richter (1992): Ecology of organisms living in a hypoxic groundwater environment at Vienna (Austria); methodological questions and preliminary results – unbekannt – ???: 79 - 90.