Text this: Learning control: The state of the art and perspective

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| \  / ||  /_   _// |  __ \\    / _ \\   | \| || 
|  \/  ||   -| ||-  | |  \ ||  | / \ ||  |  ' || 
| .  . ||   _| ||_  | |__/ ||  | \_/ ||  | .  || 
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