Detection of compressed tracheal sound patterns with large amplitude variation during sleep. - Antti Kulkas; E. Rauhala; Eero Huupponen; J. Virkkala; Mirja Tenhunen; Antti Saastamoinen; Sari-Leena Himanen (Medical Biol. Eng. Comput., 2008)

Intelligent methods for identifying respiratory cycle phases from tracheal sound signal during sleep. - Antti Kulkas; Eero Huupponen; J. Virkkala; Mirja Tenhunen; Antti Saastamoinen; E. Rauhala; Sari-Leena Himanen (Comput. Biol. Medicine, 2009)

New tracheal sound feature for apnoea analysis. - Antti Kulkas; Eero Huupponen; J. Virkkala; Mirja Tenhunen; Antti Saastamoinen; E. Rauhala; Sari-Leena Himanen (Medical Biol. Eng. Comput., 2009)