Thermal states of coldest and hottest neutron stars in soft X-ray transientsD. G. Yakovlev, K. P. Levenfish, A. Y. Potekhin, O. Y. Gnedin and G. ChabrierA&A, 417 1 (2004) 169-179DOI: https://doi.org/10.1051/0004-6361:20034191