Quantum mechanics : a half century later : papers of a Colloquium on Fifty Years of Quantum Mechanics, held at the University Louis Pasteur, Strasbourg, May 2-4, 1974

Include the Observer in the Wave Function?.- On the Possible Connections between Quantum Mechanics and Gravitation.- The Quantum Probability Calculus.- Quantum Logics and Ideal Measurements of the First Kind.- A First Lecture on Quantum Mechanics.- Essay on the Development of the Statistical Theory of the Calculus of Probability.- The Quantum Mechanical One-System Formalism, Joint Probabilities and Locality.- On Propositions and Physical Systems.- Towards a Proper Quantum Theory.- On the Intuitive Understanding of Non-Locality as Implied by Quantum Theory.- Four Ideas of David Bohm on the Relationship between Quantum Mechanics and Relativity.- The Role of Quantum Mechanics in the Set-up of a Mathematical Government among Molecular Populations.- Hidden Parameters, Hidden Probabilities.- The Recent Attempts to Verify Quantum Mechanics.- Spin Correlation Measurement in Proton-Proton Scattering and Comparison with the Theories of the Local Hidden Variables.