PT - JOURNAL ARTICLE AU - Gerald O. Bierwag AU - George G. Kaufman AU - Cynthia M. Latta TI - Duration models AID - 10.3905/jpm.1988.409180 DP - 1988 Oct 31 TA - The Journal of Portfolio Management PG - 50--54 VI - 15 IP - 1 4099 - https://pm-research.com/content/15/1/50.short 4100 - https://pm-research.com/content/15/1/50.full