1. Continuity in Intuitionistic Set Theories;Beeson,1979
2. Foundations of Constructive Mathematics: Metamathematical Studies;Beeson,2012
3. Koepke machines and satisfiability for infinitary propositional languages;Carl,2017
4. Taming Koepke's zoo;Carl,2018
5. Ordinal Time Turing Computation;Dawson,2009