Gapless neutron superfluidity in the crust of the accreting neutron stars KS 1731−260 and MXB 1659−29 Valentin Allard and Nicolas Chamel Eur. Phys. J. A, 60 5 (2024) 116 Published online: 29 May 2024 DOI: 10.1140/epja/s10050-024-01329-z