Coupling of resonant cavities by resonant coupling devices /
Dunn, P. D.,author.
Sabel, C. S.,author.
Thompson, D. J.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"Dec., 1956."
Sold but not published by H.M. Stationery Office.