Unexpected late-time temperature increase observed in the two neutron star crust-cooling sources XTE J1701−462 and EXO 0748−676A. S. Parikh, R. Wijnands, J. Homan, N. Degenaar, B. Wolvers, L. S. Ootes and D. PageA&A, 638 (2020) L2DOI: https://doi.org/10.1051/0004-6361/202038198