1. Arrêté Ministériel du 12 février 2003. Traitement des cadavres, des déchets et des sous-produits d’origine animale, ICPE 2730-2731, France, 2003.
2. Montreal Urban Community, By-law 90 pertaining to air purification (CUM By-law 90), Canada, 2001.
3. ASTM International, E679-04: Standard Practice for Determination of Odor and Taste Thresholds By a Forced-Choice Ascending Concentration Series Method of Limits, USA, 2005.
4. European Committee for Standardization, EN 13725: Air Quality—Determination of Odour Concentration by Dynamic Olfactometry, 2002.
5. Assesment of odours from sewage treatment works by an electronic nose, H2S analysis and olfactometry;Stuetz;Water Res.,1998