[1] 出现在埃米尔·波斯特论文“Recursive Unsolvability of a Problem of Thue”,The Journal of Symbolic Logic,Vol. 12,No. 1(Mar. 1947),1-11的附录中。整篇文章转载于Martin Davis,ed.,The Undecidable(Raven Press,1965),293-303。附录转载于B. Jack Copeland,ed.,The Essential Turing(Oxford University Press,2004),97-101。

    [2] 唐纳德·戴维斯的“Corrections to Turing’s Universal Computing Machine”,in C. Jack Copeland,ed.,The Essential Turing,103-124。任何想要编写仿真通用机程序的人都想专研戴维斯的文章。

    [3] 由波斯特建议,“Recursive Unsolvability of a Problem of Thue”,7。

    [4] John P. Burgess在George S. Boolos、John P. Burgess和Richard C. Jeffrey所著的Computability and Logic, fourth edition(Cambridge University Press,2002)一书的前言中提到的。