RT Journal Article SR Electronic T1 Discrete-Time Versions of Continuous-Time Interest Rate Models JF The Journal of Fixed Income FD Institutional Investor Journals SP 86 OP 88 DO 10.3905/jfi.1995.408142 VO 5 IS 2 A1 Steven L Heston YR 1995 UL https://pm-research.com/content/5/2/86.abstract AB