1. European Parliament and Council: Directive 2002/49/EC of 25 June 2002 relating to the assessment and management of environmental noise. Official Journal of the European Communities L189/12, 18/07/2002.
2. WHO Regional Office for Europe. 2011 Burden of disease from environmental noise: quantification of healthy life years lost in Europe. http://www.euro.who.int/__data/assets/pdf_file/0008/136466/e94888.pdf . Accessed December 2016.
3. UNI/TS 11387:2010 Linee guida alla mappatura acustica e mappatura acustica strategica - Modalità di stesura delle mappe. (Guideline for noise mapping and strategic noise mapping – how to draw up maps.)
4. Brambilla G, Poggi A. Indicazioni operative per la costruzione dell’indicatore “popolazione esposta al rumore” in riferimento alla direttiva 2002/49/CE. (Practical guidance to the calculation of people exposed to noise according European Directive 2002/49/EC) I quaderni di ARPA Emilia Romagna “Inquinamento acustico”, Bologna; 2007, ISBN 88–87854–20–3, 65–71.
5. Licitra G, Ascari E, Brambilla G. Comparative analysis of methods to estimate urban noise exposure of inhabitants. Acta Ascust united Ac 2012;98:659–66. doi: 10.3813/AAA.918546 .