2013. ‘tambapaṇṇiya and tāmraśāṭiya’, "journal of buddhist studies", 11, pp. 21–46: on the ancient sri lankan school. (oxford.academia.edu only has the abstract, but the article is downloadable from: https://ocbs.org/wp-content/uploads/2015/09/tambapan%cc%a3n%cc%a3iya-and-ta%cc%84mras%cc%81a%cc%84t%cc%a3iya.pdf)