The Fatigue Check System for VDT Workers by Measuring CFF. - Masaharu Takeda; Yoshio Hayashi; Kaoru Suzuki (HCI (1), 1993)

Analysis of Uric Properties for Stress Caused by VDT Work and Relationship Among CFF, HRV and VEP. - Masaharu Takeda; Yoshio Hayashi; Kaoru Suzuki (HCI (1), 1993)

Does the Circadian Rhythm of VDT Operators Cause Fluctuations of CFF Value that to Mask Fatigue Variations During Work Load?. - Masaharu Takeda; Yoshio Hayashi (HCI (1), 1997)