PT - JOURNAL ARTICLE AU - Michael G. Ferri TI - How do Call Provisions Influence Bond Yields? AID - 10.3905/jpm.1979.55 DP - 1979 Jan 31 TA - The Journal of Portfolio Management PG - 55--57 VI - 5 IP - 2 4099 - https://pm-research.com/content/5/2/55.short 4100 - https://pm-research.com/content/5/2/55.full