at Physics Exhibition Centre, The University of York on 7 Apr 2017

at The Brewery, London on 16 Feb 2017 – 17 Feb 2017

at Manchester Conference Centre on 1 Oct 2015 – 4 Oct 2015

at The Brewery on 21 Feb 2014 – 22 Feb 2014

at Manchester Conference Centre on 3 Oct 2013 – 6 Oct 2013