1. Characteristics of an ITS that evolves from tutor to operator's assistant;Chu,1989
2. Process simulators for safety;Ferney;Plant/Operations Progress,1991
3. Aiding process plant operators in fault finding and corrective action;Lihou,1981
4. Experiemce with a simulator for training ammonia plant operators;Mani;Plant/Operations Progress,1990
5. A fault-finding training programme for continuous plant operators;Marshall,1981