Gmelin Handbook: C: MVol.D3, 6.2.5.6.7.11, page 238 - 239 Full Text Show Details Becke-Goehring; Fluck, E. in: C. B. Colburn, Developmants in Inorganic Nitrogen Chemistry, Bd. 1, Amsterdam-London-New York 1966, S. 150/240