PT - JOURNAL ARTICLE AU - Steven W. Abrahams TI - A Review of Extension Risk in Thirty-Year GNMA Mortgages AID - 10.3905/jfi.1994.408116 DP - 1994 Dec 31 TA - The Journal of Fixed Income PG - 63--68 VI - 4 IP - 3 4099 - https://pm-research.com/content/4/3/63.short 4100 - https://pm-research.com/content/4/3/63.full