Kleijnen, R.G. (16 December 2011). The Chlorine Dilemma(PDF). Eindhoven University of Technology. Archived from the original(PDF) on 22 February 2014. Retrieved 18 January 2014.[page needed]
Kleijnen, R.G. (16 December 2011). The Chlorine Dilemma(PDF). Eindhoven University of Technology. Archived from the original(PDF) on 22 February 2014. Retrieved 18 January 2014.[page needed]