International Conference on Displays for Man-Machine Systems 4-7 April 1977 International Conference on Displays for Man-Machine Systems International Conference on Distributed Computing Systems International Conference on Control 88 13-15 April 1988 International Conference on Machine Control Systems International Conference on Performance of Data Communication Systems and Their Applications International Conference on Applied Nonlinear Analysis International Conference on Dynamic Programming and its Applications International Conference on Mining Machinery International Conference on Polypropylene Fibres and Textiles