Arai, Yoshinari and Tanaka, Shotaro. 1966a. “On Axiom Systems of Propositional Calculi, XIX.”Proc. Japan Acad. 42: 358–360.
Arai, Yoshinari and Tanaka, Shotaro. 1966b. “A Remark on Propositional Calculi with Variable Functors.”Proc. Japan Acad. 42: 1056–1057.
Blackmore, John T., Itagaki, R. and Tanaka, Shotaro, eds. 2001. Ernst Mach’s Vienna 1895–1930. or Phenomenalism as Philosophy of Science. Boston Studies in the Philosophy of Science n. 218. Dordrecht: Kluwer Academic Publishers.