Thermal Casimir effect with general boundary conditionsJ. M. Muñoz-Castañeda, L. Santamaría-Sanz, M. Donaire and M. Tello-FraileEur. Phys. J. C, 80 8 (2020) 793DOI: https://doi.org/10.1140/epjc/s10052-020-8348-1