Sara Fascione has published a volume of conference papers: Concatenantur sibi epistulae nostrae. Reading Ancient Latin Letter Collections (23-24 September 2021), Echo 38, Foggia: Il Castello Edizioni, 2022.
View the Introduction and ToC
Sidonius’ correspondence is among the collections analysed by Joop van Waarden in ‘The proportions of Latin letter collections: A probe’, pp. 61-74. Download the accompanying digital set of calculations and graphs.