15.1. VASICEK'S TERM STRUCTURE MODEL15.2. VALUING EUROPEAN OPTIONS ON ZERO-COUPON BONDS, VASICEK'S MODEL15.3. VALUING EUROPEAN OPTIONS ON COUPON BONDS, VASICEK'S MODEL15.4. CIR TERM STRUCTURE MODEL15.5. VALUING EUROPEAN OPTIONS ON ZERO-COUPON BONDS, CIR MODEL15.6. VALUING EUROPEAN OPTIONS ON COUPON BONDS, CIR MODEL15.7. USER-DEFINED FUNCTIONS IN Module115.7.1. SUMMARY15.7.2. REFERENCES