1. P.E. Caines, P.J. Hubbard (1998). A state aggregation approach to hierarchical supervisory control with applications to a transferline example. In: Proceedings of the WODES 98. Cagliary, Italy. pp. 2-7.
2. A new approach for supervisory control of discrete event sistems;Cury;Proceedings of the European Control Conference 2001,2001
3. Hierarchically consistent controlled discrete event systems;da Cunha;Article submited to the IFAC World Congress 2002,2001
4. Modular supervisory control of large scale discrete event systems;de Queiroz;Discrete Event Systems. Analysis and Control (WODES),2000
5. The control of discrete event systems;Ramadge;Proceeding of the IEEE,1989