Celka, P.2004-12-032004-12-032004-12-03199410.1142/S0218127494001313https://infoscience.epfl.ch/handle/20.500.14299/182393WOS:A1994QM15900021chaosExperimental verification of Pyragas's chaos control method applied to Chua's circuittext::journal::journal article::research article