%0 Journal Article %A Gerald O. Bierwag %A Charles J. Corrado %A George G. Kaufman %T Computing durations for bond portfolios %D 1990 %R 10.3905/jpm.1990.409304 %J The Journal of Portfolio Management %P 51-55 %V 17 %N 1 %U https://jpm.pm-research.com/content/iijpormgmt/17/1/51.full.pdf