Parameters of the human 3D gaze while observing portable autostereoscopic display: a model and measurement results. - Atanas Boev; Marianne Hanhela; Atanas P. Gotchev; Timo Utirainen; Satu Jumisko-Pyykkö; Miska M. Hannuksela (Multimedia on Mobile Devices / Multimedia Content Access: Algorithms and Systems, 2012)