1. An UnsolvableProblem of Elementary Number Theory;Church,1936
2. General Recursive Functions of Natural Numbers;Kleene,1936
3. Finite Combinatory Processes. Formulation I;Post,1936
4. On Computable Numbers, with an Application to the Entscheidungsproblem;Turing,1936
5. Did Turing and Church Have a Thesis about Machines;Hodges,2006