Zheng SD, Pei X-M, Xu J. Progress of brain-neural function informatics. Zhongguo Yi Liao Qi Xie Za Zhi [Internet]. 2006;30(6):399-406, 462. http://www.ncbi.nlm.nih.gov/pubmed/17300003

Wolpaw J, Birbaumer N, McFarland DJ, Pfurtscheller G, Vaughan TM. Brain-computer interfaces for communication and control. Clin Neurophysiol [Internet]. 2002;113(6):767-91. http://www.ncbi.nlm.nih.gov/pubmed/12048038