Polaronic metal in lightly doped high-Tc cupratesA. S. Mishchenko, N. Nagaosa, K. M. Shen, Z.-X. Shen, X. J. Zhou and T. P. DevereauxEPL, 95 5 (2011) 57007DOI: https://doi.org/10.1209/0295-5075/95/57007