1. Simulation Study Group, Simulation in UK, Manufacturing Industry, Coventry, UK: The Management Consulting Group, University of Warwick, 1991.
2. A.S. Carrie, Hierarchical modelling-principles and review, Proc. WORKSIMS Conf., Singapore, 1994.
3. G.M. Lane, J.M. Fegan, Hierarchical simulation of a flow line for printed circuit board fabrication using ISI-the Intelligent Simulation Interface, Proc. Eur. Simulation Symp., Society for Computer Simulation (SCS), Ghent, Belgium, 1990, pp. 215–219.
4. The role of process abstraction in simulation;Fishwick;IEEE Trans. Systems, Man Cybern.,1988
5. V. Ceric, Hierarchical abilities of diagrammatic representations of discrete event simulation models, Proc. Winter Simulation Conf., IEEE, Lake Buena Vista, FL, 11–14 December, 1994, pp. 589–594.