@article {Bergtold2007145,
	title = {Nematodes in wastewater biofilms{\textendash}Appearance and density of species in three biofilter reactors},
	journal = {Water Research},
	volume = {41},
	number = {1},
	year = {2007},
	pages = {145 - 151},
	keywords = {Wastewater},
	issn = {0043-1354},
	doi = {DOI: 10.1016/j.watres.2006.09.023},
	author = {M. Bergtold and G. Mayr and W. Traunspurger}
}
