Multi-flex field trial over 762km of G.652 SSMF using programmable modulation formats up to 64QAM. - Danish Rafique; Talha Rahman; Bernhard Spinnler; Erwan Pincemin; Stefano Calabrò; Erik De Man; Uwe Feiste; Juraj Slovak; Antonio Napoli; Claude Le Bouëtté; Jérémie Jauffrit; Sylvain Bordais; et al. (OFC, 2016)