RT Journal Article SR Electronic T1 A Rapid Determination of the Specific Activity of 85Krypton in Pressurized Cylinders JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 913 OP 919 VO 5 IS 12 A1 Kenneth D. Williams YR 1964 UL http://jnm.snmjournals.org/content/5/12/913.abstract AB