RT Journal Article SR Electronic T1 Who Puts the Slope in the Municipal Yield Curve? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 61 OP 65 DO 10.3905/jpm.1983.61 VO 9 IS 4 A1 Eric H. Sorensen YR 1983 UL https://pm-research.com/content/9/4/61.abstract AB