以下三篇英文文献在在我们学校数据库里不能全文下载，请同学们帮个忙，万分感激！！！（1）《pricing options on securities with discontinuous returns》.stochastic processes and their applications，1993,48:57-83
（2）《necessary conditions for optimal control of stochastic systems with random jumps》SIAM journal on control and optimization。1994,35（2）:1447-1475
（3）《pricing of unit-linked insurance policies》scandinavian actuarial journal.1994,1:26-52
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