Mommsen, Th. (1894): Cassiodori Senatoris Variae, Monumenta Germaniae Historica – Auctores antiquissimi, vol. XII.
Mommsen, Th. (1894): Cassiodori Senatoris Variae, Monumenta Germaniae Historica – Auctores antiquissimi, vol. XII.
Shackleton Bailey, D. R. (1978). Cicero’s Letters to his Friends. Penguin Books.
A research website about Archaeology of Ancient Roman Thermalism — and a meeting point for researchers and other people interested in this subject (Red Termal).