RT Journal Article SR Electronic T1 A Review of Extension Risk in Thirty-Year GNMA Mortgages JF The Journal of Fixed Income FD Institutional Investor Journals SP 63 OP 68 DO 10.3905/jfi.1994.408116 VO 4 IS 3 A1 Steven W. Abrahams YR 1994 UL https://pm-research.com/content/4/3/63.abstract AB