RT Journal Article SR Electronic T1 Horizon Analysis for Managed Bond Portfolios JF The Journal of Portfolio Management FD Institutional Investor Journals SP 23 OP 34 DO 10.3905/jpm.1975.408525 VO 1 IS 3 A1 Martin L. Leibowitz YR 1975 UL https://pm-research.com/content/1/3/23.abstract AB