Solid-liquid equilibria of three binary systems: {1-Ethyl-3-methylimidazolium hexafluorophosphate + 2-phenylimidazole, or 4,5-diphenylimidazole or 2,4,5-triphenylimidazole} Sifaoui, H.; Ait-Kaci, A.; Modarressi, A.; Rogalski, M.; Thermochimica Acta 2007, 456, 114-119