%0 Journal Article %A Martin L. Leibowitz %A Alfred Weinberger %T The uses of contingent immunization %D 1981 %R 10.3905/jpm.1981.408835 %J The Journal of Portfolio Management %P 51-55 %V 8 %N 1 %U https://jpm.pm-research.com/content/iijpormgmt/8/1/51.full.pdf