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THE ASSOCIATED DISTURBANCE-FREE SYSTEM: A MEANS FOR INVESTIGATING THE CONTROLLABILITY OF A DISTURBED SYSTEMBARMISH BR; SCHMITTENDORF WE.1982; JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS; ISSN 0022-3239; USA; DA. 1982; VOL. 38; NO 4; PP. 525-540; BIBL. 18 REF.Article

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Local accessibility, local reachability, and representations of compact groupsCROUCH, P. E; BYRNES, C. I.Mathematical systems theory. 1986, Vol 19, Num 1, pp 43-65, issn 0025-5661Article

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