1. Barnes, J. (2002). Positional neutralization: A phonologization approach to typological patterns. Ph.D. dissertation. University of California, Berkeley.
2. Beckman, J. N. (1998). Positional faithfulness. Ph.D. dissertation. University of Massachusetts, Amherst.
3. The parsing of prosody;Beckman;Language and Cognitive Processes,1996
4. Beckman, M. E., & Elam, G. A. (1997). Guidelines for ToBI labelling, version 3.0. Unpublished Manuscript, Ohio State University.
5. Prosodic structure and tempo in a sonority model of articulatory dynamics;Beckman,1992