T. F. Quatieri, et al., “Multimodal biomarkers to discriminate cognitive state,” in The Role of Technology in Clinical Neuropsychology, R. L. Kane and T. D. Parson, Ed. Oxford University Press, 2017, pp. 409–443.
R. E. Hillman and D. D. Mehta, “Ambulatory monitoring of daily voice use,” Perspectives on Voice and Voice Disorders, vol. 21, no. 2, pp. 56-61, 2011. Publisher's Version Paper