参考文献
Clar; John
Chemische Berichte, 1930 , vol. 63, p. 2967,2976
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Hernler; Schnuerch
Monatshefte fuer Chemie, 1929 , vol. 53/54, p. 644
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Clar; John
Chemische Berichte, 1929 , vol. 62, p. 3028,3029
Chemische Berichte, 1930 , vol. 63, p. 2938