DeVane, William C, "The Virgin and the Dragon," in The Yale Review Vol. XXXVII, No. 1, September, 1947, pp. 33-46.
Friedland, Louis S., "Ferrara and My Last Duchess," in Studies in Philology Vol. 33, 1936, pp. 656-84.
Jerman, B. R., "Browning's Witless Duke," and Perrine, Laurence, "Browning's Shrewd Duke," in Publications of the Modern Language Association Vol. 72, June, 1957, pp. 488-93.
Langbaum, Robert, The Poetry of Experience: The Dramatic Monologue in Modern Literary Tradition New York: Random House, 1963.
Langbaum, Robert, "The Dramatic Monologue: Sympathy versus Judgement," in The Poetry of Experience: The Dramatic Monologue in Modern Literary Tradition, Random House, 1957, pp. 75-108.
Raymond, William O., "Browning's Casuists," in Studies in Philology, Vol. XXXVII, No. 4, October, 1940, pp. 641-66.
Ryals, Clyde de L., "Browning's Irony," in The Victorian Experience: The Poets, edited by Richard A. Levine, Ohio University Press, 1982, pp. 23-46.
For Further Study
Atlick, Richard D., Victorian People and Ideas, New York: Norton, 1973.
An overview of Victorian culture and history, presented thematically as a companion to the literature of the age.
McCarthy, Mary, The Stones of Florence, New York: Harvest Books, 1963.
Writing about its most significant city, McCarthy paints a compelling picture of the Renaissance in all its glory and corruption.
Pater, Walter, The Renaissance, Chicago: Pandora Books, 1978.
A Victorian, Pater resurrects the great figures of the Renaissance. His biographical sketches tell not only of the period about which he writes but also about his nineteenth-century audience, which had grown skeptical of its Renaissance legacy.