CMCS Publications
Márkus (Gilbert): What were Patrick’s alphabets?
In CMCS 31 (Summer, 1996), pp. 1–15.
Argues that the abgitorias and elementa that St. Patrick is said by Tírechán to have written are best taken as meaning ‘guides to monastic life’, comparable to OIr. aibgitir in Apgitir Chrábaid.

Corthals (Johan): Early Irish retoirics and their late antique background.
In CMCS 31 (Summer, 1996), pp. 17–36.
Suggests that they originate in the 6th c. in imitation of Latin poetry and rhetorical style. Includes observations on Bergin’s law.