Calvert, Gemma A.; Campbell, Ruth (1 January 2003). "Reading Speech from Still and Moving Faces: The Neural Substrates of Visible Speech". Journal of Cognitive Neuroscience. 15 (1): 57–70. doi:10.1162/089892903321107828. PMID12590843. S2CID14153329.
Calvert, Gemma A.; Campbell, Ruth (1 January 2003). "Reading Speech from Still and Moving Faces: The Neural Substrates of Visible Speech". Journal of Cognitive Neuroscience. 15 (1): 57–70. doi:10.1162/089892903321107828. PMID12590843. S2CID14153329.
Calvert, Gemma A.; Campbell, Ruth (1 January 2003). "Reading Speech from Still and Moving Faces: The Neural Substrates of Visible Speech". Journal of Cognitive Neuroscience. 15 (1): 57–70. doi:10.1162/089892903321107828. PMID12590843. S2CID14153329.