[UV1]: Edison Tech Centre information page on producing fluorescent light. Available at http://www.edisontechcenter.org/Fluorescent.html [Accessed 10/02/2017]

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[UV2]: Liverpool University information publication on UVGI. Available at https://www.liverpool.ac.uk/media/livacuk/radiation/pdf/UV_germicidal.pdf [Accessed 10/02/2017]

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[UV3]: UVGI systems on how the process works. Available at http://www.uvgisystems.com/uvgi/how-does-it-work.aspx [Accessed 15/02/2017]