@article {1660,
	title = {Processing sludge from wastewater treatment plants},
	year = {2001},
	url = {https://sswm.info/sites/default/files/reference_attachments/ANDREOLI\%20et\%20al\%202007\%20Sludge\%20Treatment\%20and\%20Disposal.pdf},
	author = {C.V. Andreoli}
}
