Robust Extended Kalman Filtering in Hybrid Positioning Applications. - Tommi Perälä; Robert Piché (WPNC, 2007)

Kalman-type positioning filters with floor plan information. - Tommi Perälä; Simo Ali-Löytty (MoMM, 2008)

Fingerprint Kalman Filter in indoor positioning applications. - Simo Ali-Löytty; Tommi Perälä; Ville Honkavirta; Robert Piché (CCA/ISIC, 2009)

A comparative survey of WLAN location fingerprinting methods. - Ville Honkavirta; Tommi Perälä; Simo Ali-Löytty; Robert Piché (WPNC, 2009)

Indoor positioning using WLAN coverage area estimates. - Laura Koski; Tommi Perälä; Robert Piché (IPIN, 2010)