Bibliografia:

·        Blackmore, J. (1972) Ernst Mach- His work, Life and Influence, London,

University of California Press Ltd.

·        Newman, J. (1988) The world of Mathematics – vol. III

·        Seeger, J (1970) Ernst Mach: Physicist and Philosopher

·        Mora, F. (1986)   Dicionário de Filosofia, Alianza Editorial