Tkachman, O., S. Hsu, M. Samarskaya, C. Zhao, and B. Gick. “Sign Language Handshapes, Similarly to Speech Sounds, Exploit Biomechanical Endpoints”. Canadian Acoustics, vol. 51, no. 3, Oct. 2023, pp. 32-33, https://jcaa.caa-aca.ca/index.php/jcaa/article/view/4078.