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2. A convergent iterative restricted complexity control design scheme;Hjalmarsson;33rd IEEE-CDC,1994
3. Direct iterative tuning via spectral analysis;Kammer;Automatica,2000
4. Iterative controller tuning based on the correlation approach;Karimi;to be published in Control Engineering Practice,2002
5. Recursive algorithms for identification in closed loop - a unified approach and evaluation;Landau;Automatica,1997