Anomalous behavior of the Fermi energy in heavily tin-doped InGaAsA. Tsukernik, D. Cheskis, O. Potashnik, A. Palevski, S. Bar-Ad, S. Luryi and A. ChoEur. Phys. J. B, 23 3 (2001) 341-344DOI: https://doi.org/10.1007/s100510170053