Strong nodeless pairing on separate electron Fermi surface sheets in (Tl, K)Fe1.78Se2 probed by ARPESX.-P. Wang, T. Qian, P. Richard, P. Zhang, J. Dong, H.-D. Wang, C.-H. Dong, M.-H. Fang and H. DingEPL, 93 5 (2011) 57001DOI: https://doi.org/10.1209/0295-5075/93/57001