RT Journal Article SR Electronic T1 Caveats in immunization of pension liabilities JF The Journal of Portfolio Management FD Institutional Investor Journals SP 54 OP 69 DO 10.3905/jpm.1992.409396 VO 18 IS 2 A1 Kenneth S. "Nicholas". Choie YR 1992 UL https://pm-research.com/content/18/2/54.abstract AB