RT Journal Article SR Electronic T1 GNMA II 30-Year Pass-Through MBS Prepayment Analysis JF The Journal of Fixed Income FD Institutional Investor Journals SP 99 OP 104 DO 10.3905/jfi.1997.408191 VO 6 IS 4 A1 Sam Choi A1 Mike Schumacher YR 1997 UL https://pm-research.com/content/6/4/99.abstract AB