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2. Contribution a l'etude des structures de commande Hierarchisee en vue de l'optimisation des processus complexes;Titli,1972
3. Practical methods for the control and state estimation of large interconnected dynamical systems;Singh;Revue Française d'Automatique, Informatique et Recherche Operationelle series,1974
4. Comparisons of practical hierarchical control methods for interconnected dynamical systems;Singh;Automatica,1975
5. Modelling and hierarchical optimization of oversaturated urban road traffic networks;Singh;Int. J. Control,1974