1. N. Strumberger, “Polymeric Materials in Automobiles ” Promet-Traffic-Traffico, Vol. 17, 2005, No. 3, 49-160
2. N. N.: Bayer AG, “Bayer Plastics Techcenter, Applications by sector”Sept. 2003. URL: http:/ / plastics. bayer .de/ AG/ AE/applica tions/markets/ KU74726/indeks.jsp
3. N. N.: Bayer AG, “Bayer Plastics Techcenter, Applications”, Oct. 2003. URL: http://plastics.bayer.de/ AG/AE/applications/indeks.jsp
4. 5'h International scientific conference on production engineering, CIM '99, Opatija;Raos,1999
5. Ashok Gandhi, R.Ashok Gandhi, B.K.Raghunath ,K.Palani Kumar, “Studies on wear characteristics of Polypropylene with modified Nano Clay(Organo O-MMT) nanocomposites” International Conference on Advances in Tribology-2014, NIT,Calicut