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