O'Brien, Carl (2019) Rabindranath Tagore’s India and William Butler Yeats’s Ireland: The Intersection of Classical Languages, Literature, and Nation-Building in Postcolonial East and West. The Canadian Review of Comparative Literature, 46 (1). ISSN 1913-9659
O'Brien, Carl (2012) Dramatic devices and philosophical content in Plato’s Symposium. Archai: revista de estudos sobre as origens do pensamento ocidental (Archai), 9. pp. 73-84. ISSN 1984-249X
O'Brien, Carl (2012) The Middle Platonist Demiurge and Stoic Cosmobiology. Horizons: Seoul Journal of Humanities. pp. 19-39. ISSN 2671-7921
O'Brien, Carl (2007) Platonism and the Tools of God. Trinity College Dublin Journal of Postgraduate Research Volume, 6. pp. 60-72.