1. Brigham, F. R.: Ergonomic problems in ship control. Appl. Ergonomics 31, 14–19 (1972).
2. Cook, T.C.C.: A study of pilotage in a U.K. oil port including workload monitoring. Dissertation, University of London 1977.
3. Cook, T.C. and P. Shipley: Human factors studies of the working hours of UK ship’s pilots. Appl. Ergonom. 11, 2,85–92 (1980) and 11, 3, 151–159 (1980).
4. Dahlmann, T.: Incidence of peptic ulcer and gastritis amongst Swedish sea pilots. Brit. J. industr. Med. 10, 157–162 (1953).
5. Economics and marine pilotage. London: Her Majesty’s Stationery Office 1973. (Department of Trade Report)