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Yu C. Autotuning of PID controllers : a relay feedback approach / C. Yu, 2006 r=on-line. - Текст : электронный.
Yu C. VOC emissions from building products. Pt. 1 : Sources, testing and emission data, 2002. - 8 p. - Текст : непосредственный.
Yu C. VOC emissions from building products. Pt. 2 : Control, evaluation and labelling schemes, 2002. - 8 p. - Текст : непосредственный.