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2. Decree law of government n° 66, 25 February 2000 Implementation of the directives 97/42/CE and 1999/38/CE, that modify directive 90/394/CEE, on the subject of the protection of workers against the risks stemming from exposure to cancerous or mutating agents during work. Available from: http://www.nonsoloaria.com/Leggi%20aria/DL66.pdf
3. Institute of Medicine (IOM): A review of monitoring methods for inhalable hardwood dust. IOM Research Project: P937/1A, 2011.
4. ON THE QUANTITATIVE DEFINITION OF THE INHALABILITY OF AIRBORNE DUST
5. ERRORS IN INHALABLE DUST SAMPLING FOR PARTICLES EXCEEDING 100 μm