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[2] Maršík J.: Adaptive Control with Finite Settling Time. Kybernetika 6 (1967), 600-608. Zbl 0154.10203

[3] Tomović R.: Sensitivity Analysis of Dynamic Systems. McGraw-Hill, N. York 1964. MR 0186422

[4] Kokotovič P., al.: Sensitivity Method in the Experimental Design of Adaptive Control Systems. IFAC Symposium London June 1966, Session 45, Paper 45 B.