9Ingersoll,J. E. A Contingent-claims Valuation of Convertible Securities[J]. Journal of Financial Economics, 1977, (4) : 289-322.
10Brennan,M. J. ,E. S. Schwartz. Convertible Bonds:Valuation and Optimal Strategies for Call and Conversion [J]. Journal of Finance, 1977, (32) : 1699-1715.