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Greenwood, N. N.; Earnshaw, A. Chemistry of the Elements 2nd. Oxford:Butterworth-Heinemann. 1997. ISBN 0-7506-3365-4. Seijo, Luis. Ab initio model potential
极品飞车 (2015年游戏)
Review. Game Revolution. 2015-11-04 [2016-08-03]. （原始内容存档于2016-07-01）. Butterworth, Scott. Need For Speed Review. GameSpot. 2015-11-02 [2016-08-03]. （原始内容存档于2021-01-08）
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Nødland; Hilmar, Rommetvedt. High performance sport. Sport Policy. Butterworth-Heinemann. 2009-11-04: 152–199 [18 August 2016]. ISBN 9781136364686.
Richard Stuart. A Short History of Anaesthesia: The First 150 Years. Butterworth-Heinemann. 1996: 39 [2019-05-20]. ISBN 9780750630665. （原始内容存档于2017-05-10）
Perennial. ISBN 0060928786 Hadow, Sir W. H., Richard Wagner, London: T. Butterworth, Ltd., 1934 Hilmes, Oliver, Cosimas Kinder: Triumph und Tragödie der