Critical assemblies with heavy water solutions of uranyl fluoride (H.A.Z.E.L).
King, D. T.,author.
Wall, G. P.,author.
White, W. C. J.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"Sept., 1958."
Sold but not published by H.M. Stationery Office.