Duncan (2016), pp. 1–2. Duncan, Daniel (2016). "'Tense' /æ/ is still lax: A phonotactics study"(PDF). In Hansson, Gunnar Ólafur; Farris-Trimble, Ashley; McMullin, Kevin; Pulleyblank, Douglas (eds.). Supplemental Proceedings of the 2015 Annual Meeting on Phonology. Vol. 3. Washington, D.C.: Linguistic Society of America. doi:10.3765/amp.v3i0.3653.
Duncan (2016), pp. 1–2. Duncan, Daniel (2016). "'Tense' /æ/ is still lax: A phonotactics study"(PDF). In Hansson, Gunnar Ólafur; Farris-Trimble, Ashley; McMullin, Kevin; Pulleyblank, Douglas (eds.). Supplemental Proceedings of the 2015 Annual Meeting on Phonology. Vol. 3. Washington, D.C.: Linguistic Society of America. doi:10.3765/amp.v3i0.3653.