1. Asimov, I. (1981). The role of the heretic. In D. Goldsmith (Ed.), Scientists confront Velikovsky. New York: W.W. Norton.
2. Bunge, M. (1945). Neutron–proton scattering at 8.8 and 13 MeV. Nature,
156, 301.
3. Bunge, M. (1959a). Causality. Cambridge, MA: Harvard University Press.
4. Bunge, M. (1959b). ¿Qué es un problema científico? Holmbergia (Buenos Aires) VI,
15, 47–63.
5. Bunge, M. (1967). Scientific research, chapter 1. Berlin, NY: Springer.