参考文献
Norman; Porter
Proceedings of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences, 1955 , vol. 230, p. 399,411
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Porter; Strachan
Transactions of the Faraday Society, 1958 , vol. 54, p. 1595,1598
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Grajcar; Leach
Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1961 , vol. 252, p. 3577