RT Journal Article SR Electronic T1 The Human Operator in Process Control JF British Journal of Industrial Medicine JO Br J Ind Med FD BMJ Publishing Group Ltd SP 130 OP 131 DO 10.1136/oem.33.2.130-b VO 33 IS 2 A1 Browne, R. C. YR 1976 UL http://oem.bmj.com/content/33/2/130.3.abstract AB