Non-Ohmic Electrical Transport in the Vicinity of the Superconducting Transition: Implications for the Study of the Phase Diagram of the Underdoped Cuprate Superconductors - Ramallo, M V; Ramallo, M V; Verde, J C; Verde, J C; Coton, N; Coton, N; Vidal, F; Vidal, F (Journal Of Superconductivity And Novel Magnetism, 2015)