Williams, Paul D. "Transatlantic flight times and climate change" Environmental Research Letters, 11(2), 024008, 2016. doi:10.1088/1748-9326/11/2/024008.
Peter G. Cooksley, 'Alcock, Sir John William (1892–1919)’, Oxford Dictionary of National Biography, Oxford University Press, 2004; online ed., Jan 2011 accessed 16 June 2012
E. C. Shepherd, 'Brown, Sir Arthur Whitten (1886–1948)’, rev. Peter G. Cooksley, Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, Jan 2011 accessed 16 June 2012