Gmelin Handbook: Cl: SVol.B2, 84, page 500 - 502 Full Text Show Details Sicedison S. p. A. Patent: DE1173441 , 1964 ; C., 1965 , p. 34-2065 Full Text Show Details Sicedison S. p. A. Patent: GB969718 , 1964 ; C., 1966 , p. 18-2082