Blind inversion of multidimensional functions for speech enhancement. - John Hogden; Patrick Valdez; Shigeru Katagiri; Erik McDermott (INTERSPEECH, 2003)

Inverting mappings from smooth paths through Rn to paths through Rm: A technique applied to recovering articulation from acoustics. - John Hogden; Philip Rubin; Erik McDermott; Shigeru Katagiri; Louis Goldstein (Speech Commun., 2007)