1. Detection of abrupt change. Theory and application;Basseville,1993
2. Björklund, S. (2003). A survey and comparison of time-delay estimation methods in linear systems. PhD thesis. Division of Automatic Control, Department of Electrical Engineering, Linköping, Sweden.
3. Coherence and time delay estimation;Carter;Proceedings of the IEEE,1987
4. An adaptative control algorithm for linear systems having unknown time delay;De Souza;Automatica,1988
5. Identification of process delay time;Faure;IEEE Transactions on Automatic Control,1969