Thomsen C E, Gade J, Nieminen K, Langford R M, Ghosh I R, Jensen K, van Gils M, Rosenfalck A, Prior P, White S
University of Copenhagen, School of Dentistry, Dept. of Oral Function and Physiology.
IEEE Eng Med Biol Mag. 1997 Nov-Dec;16(6):33-40. doi: 10.1109/51.637115.