@article {15,
	title = {Knowledge Representation in an activated sludge plant diagnosis system},
	journal = {International Journal Expert Systems with Applications},
	volume = {17},
	year = {2000},
	month = {00/2000},
	pages = {226-240},
	type = {Expert Systems},
	doi = {10.1111/1468-0394.00145},
	author = {G. Vouros and J. Pantelakis and T.D. Lekkas}
}
