Acknowledgements
We would like to thank Eric Rogers, editor of the International Journal of Control, for his support in organising this special issue. We wish to thank sincerely all of the authors for their valuable contributions and for their sterling efforts to keep to the timetable for the production of the special issue. Special thanks also to reviewers for the quality of their reports and helpful feedback that they provided. Finally, we hope that the articles in this special issue will both inform and stimulate new research endeavours and applications.