RT Journal Article SR Electronic T1 Duration as a measure of basis risk JF The Journal of Portfolio Management FD Institutional Investor Journals SP 82 OP 85 DO 10.3905/jpm.1989.409215 VO 15 IS 4 A1 Gerald O. Bierwag A1 George G. Kaufman A1 Cynthia M. Latta A1 Gordon S. Roberts YR 1989 UL https://pm-research.com/content/15/4/82.abstract AB