Isothermal Vapor-Liquid Equilibrium Data for the 1,1,2,2-Tetrafluoroethene + 1,1,2,2,3,3,4,4-Octafluorocyclobutane Binary System: Measurement and Modeling from (248 to 283) K Conradie, F.J.; Crouse, P.L.; Courtial, X.; van der Walt, I.J.; Ramjugernath, D.; Journal of Chemical & Engineering Data 2012, 57, 1978-1983