PT - JOURNAL ARTICLE AU - Gene Laber TI - How do Call Provisions Influence Bond Yields? AID - 10.3905/jpm.1979.70 DP - 1979 Jul 31 TA - The Journal of Portfolio Management PG - 70--71 VI - 5 IP - 4 4099 - https://pm-research.com/content/5/4/70.short 4100 - https://pm-research.com/content/5/4/70.full