Group averaged absorption cross sections in the resonance region for some hafnium isotopes /

"Knolls Atomic Power Laboratory, Schenectady, New York, operated for the U.S. Atomic Energy Commission by the General Electric Company"--Cover."Contract No. W-31-109 Eng-52.""November 28, 1956.""Physics (TID-4500, 12th ed.).""KAPL-1635."Includes bibliographical references (p. 31).U.S. Atomic Energy Commission Contract ;Mode of access: Internet