1
by Mehra, Jagdish
Published 1974
Springer Netherlands
Table of Contents: .... The Complementary Description -- 7.3. The ‘Positivistic’ Point of View or Two Kinds of Reality -- 7.4...

2
by Wigner, Eugene Paul
Published 1995
Springer Berlin Heidelberg
Table of Contents: ...: Comments on Professor Putnam’s Comments -- Two Kinds of Reality -- Epistemology of Quantum Mechanics...