RT Journal Article SR Electronic T1 The term structure and callable bond yield spreads JF The Journal of Portfolio Management FD Institutional Investor Journals SP 57 OP 63 DO 10.3905/jpm.1983.408914 VO 9 IS 2 A1 Jess B. Yawitz A1 Kevin J. Maloney A1 William J. Marshall YR 1983 UL https://pm-research.com/content/9/2/57.abstract AB