Wei, X., Lucey, P., Morgan, S., Sridharan, S. Julkaisussa IEEE Transactions on Knowledge and Data Engineering (2016)
Reid, M. M., Campbell, A. C., Elliott, B. C. Julkaisussa Journal of Applied Biomechanics (2012)
Baca, A. Julkaisussa Computers in Biology and Medicine (1998)