@article {2938,
	title = {Biology of a high-rate activated-sludge plant of a pharmaceutical industry.},
	journal = { Archiv fur Hydrobiologie, (Suppl.)},
	volume = {90},
	number = {2},
	year = {1992},
	note = {General, Records, Diags. Ecol.
},
	pages = { 207-251},
	keywords = {Opercularia asymmetrica, Parastrongylidium oswaldi, Pseudocohnilembus pusillus},
	author = {Aescht, E. and Foissner, W.}
}
