Mommsen, Th. (1894): Cassiodori Senatoris Variae, Monumenta Germaniae Historica – Auctores antiquissimi, vol. XII.
Fortner, B. C. (1934). Cicero’s Town and Country Houses. The Classical Weekly, 27(23), 177-181. https://doi.org/10.2307/4339387
Aelian, Various Histories, Book VII, Chapter 8, translated by N. G. Wilson.
Allen, T.J. (1998): Roman healing spas in Italy: a study in design and function. PhD. University of Alberta. Alberta. DOI: 10.7939/R3XK84W4C
A research website about Archaeology of Ancient Roman Thermalism — and a meeting point for researchers and other people interested in this subject (Red Termal).
