*Athanasopoulou, Maria Elias. "The Greek Sonnet (1895-1936): A Study in Poetics". Ph.D. dissertation, University of Cambridge, Department of Other Languages, May 1999. BLDSC number: D205233. 296 p.
Subsequently published (only) in Greek, as: Αθανασοπούλου, Μαρία. Το ελληνικό σονέτο, 1895-1936: μια μελέτη ποιητικής. Θεσσαλονίκη: University Studio Press, 2011. 383 σ. (ISBN 9789601220321, 9601220321)