Cognitive workload of in-car auditory-vocal interfaces on visuospatial sketchpad based on a dual task of visual pattern test. - Takahiro Miura; Ken-ichiro Yabu; Youji Shimizu; Kenichi Tanaka; Masamitsu Furukawa; Seiko Michiyoshi; Tetsuya Yamamoto; Kazutaka Ueda; Tohru Ifukube (SAC, 2019)