RT Journal Article SR Electronic T1 Comment Called Bonds JF The Journal of Portfolio Management FD Institutional Investor Journals SP 62 OP 63 DO 10.3905/jpm.1981.62 VO 8 IS 1 A1 William P. Lloyd A1 Steven J. Goldstein YR 1981 UL https://pm-research.com/content/8/1/62.abstract AB