1. Theory of majority decision elements;Muroga, Saburo;J. Franklin Inst.,1961
2. Majority decision functions of six variables;Toda, Iwao;Rev. Elec. Comm. Lab.,1961
3. A computer program to find Boolean functions representable by a single logical element based on a majority decision principle;Muroga, Saburo;Rev. Elec. Comm. Lab.,1960
4. On the number of symmetry types of Boolean functions of 𝑛 variables;Slepian, David;Canad. J. Math.,1953
5. B. Elspas, “Self-complementary types of Boolean functions,” IRE Trans. on Electronic Computers, v. EC-9, n. 2, 1960, p. 264-266.