Rayleigh-Ritz procedure for determining the flux and the critical laplacian of one-group diffusion theory for heterogeneous reactors /
Ackroyd, R. T.,author.
Campbell, A.,author.
Haskey, H. W.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"October 1957."
Sold but not published by H.M. Stationery Office.