1. Wadkins, E.: A continuous silent speech recognition system for AlterEgo, a silent speech interface, 24 May 2019. https://dspace.mit.edu/bitstream/handle/1721.1/123121/1128187233-MIT.pdf?sequence=1&isAllowed=y
2. Meltzner, G.S., Heaton, J.T., Deng, Y.: The MUTE silent speech recognition system. In: INTERSPEECH, Burlington (2013)
3. ASHA American Speech - Language - Hearing Association, “Quick Facts,”. Accessed 12 Sept 2021
4. Gonzalez-Lopez, J.A.. Gomez-Alanis, A., Martin-Donas, J.M., Perez-Cordoba, J.L., Gomez, A.M.: Silent speech interfaces for speech restoration: a review, Granada (2020)
5. Hummel, J., et al.: Evaluation of a new electromagnetic tracking system using a standardized assessment protocol. Phys. Med. Biol. 51(10), 27 (2006)