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ISSN:0202-2893|17|2|181-184

MAIK Nauka/Interperiodica‎(2011)‎

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By Spathopoulos M. P.   Grobov I. D.   in International Journal of Control

ISSN:1366-5820|71|3|505-516

Taylor & Francis Ltd‎(1998)‎

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