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Flagello--.
Mi pare doveroso includere alcune tra le centinaia di fonti bibliografiche:
http://hrcak.srce.hr/file/37724
http://standards.sae.org/j300_201501/
www.treccani.it/export/sites/defaul...751-772_ita.pdf
www.researchgate.net/publication/2...iction_A_review
www.treccani.it/export/sites/defaul...339-350ITA3.pdf
www.api.org/Oil-and-Natural-Gas-Ove...I_Quality_Marks
www.syntheticwarehouse.com/absolute_efficiency_bypass.htm
www.intertek.com/automotive/api/
www.osti.gov/eprints/topicpages/doc...09/5401891.html
Edited by Flagello-- - 24/2/2016, 20:19.