Brown; McCall Journal of the Chemical Society, 1955 , p. 3681,3683 Full Text Show Details Arventiev; Siminiuc Anal. stiint. Univ. IasiChem.Abstr., 1957 , vol. # 3, p. 345,347 Anal. stiint. Univ. IasiChem.Abstr., 1959 , p. 14997