RT Journal Article SR Electronic T1 Immunization Using Principal Component Analysis JF The Journal of Portfolio Management FD Institutional Investor Journals SP 99 OP 105 DO 10.3905/jpm.1996.409574 VO 23 IS 1 A1 Joel R. Barber A1 Mark L. Copper YR 1996 UL https://pm-research.com/content/23/1/99.abstract AB