参考文献

Collection of Czechoslovak Chemical Communications, , vol. 2, p. 32 Chemicke Listy, , vol. 24, p. 221 Chem. Zentralbl., , vol. 101, # II p. 543 Chemicke Listy, vol. 24, p. 221 Chem. Zentralbl., , vol. 101, # II p. 543 Chemicke Listy, , vol. 22, p. 499 Chem. Zentralbl., , vol. 100, # I p. 1623