1. Introduction

   EditorialNotes Pages: 2205 - 2205

2. Quantum structures due to fluctuations of the measurement situation

   • Diederik Aerts

   OriginalPaper Pages: 2207 - 2220

3. Stochastic differential equations anda posteriori states in quantum mechanics

   • A. Barchielli

   OriginalPaper Pages: 2221 - 2233

4. Decomposability of mixed states into pure states and related properties

   • E. G. Beltrametti
   • S. Bugajski

   OriginalPaper Pages: 2235 - 2244

5. Existence of trajectories for Bohmian mechanics

   • K. Berndl
   • D. Dürr
   • N. Zanghi

   OriginalPaper Pages: 2245 - 2251

6. Inaccurate experiments and environment-induced superselection rules

   • Thomas Breuer

   OriginalPaper Pages: 2253 - 2259

7. Concepts of coarse graining in quantum mechanics

   • Paul Busch
   • Ralf Quadt

   OriginalPaper Pages: 2261 - 2269

8. Forms for probability ascriptions

   • Jeremy Butterfield

   OriginalPaper Pages: 2271 - 2286

9. Parameter dependence in dynamical models for statevector reduction

   • J. Butterfield
   • G. N. Fleming
   • R. Grassi

   OriginalPaper Pages: 2287 - 2304

10. A Galois connection approach to superposition and inaccessibility

    • Jeremy Butterfield
    • Joseph Melia

    OriginalPaper Pages: 2305 - 2321

11. Mathematical foundations of classical embeddings of quantum mechanical state spaces

    • Gianni Cassinelli

    OriginalPaper Pages: 2323 - 2333

12. The notions of symmetry and computational feedback in the paradigm of steady, simultaneous quantum computation

    • G. Castagnoli
    • M. Rasetti

    OriginalPaper Pages: 2335 - 2347

13. A statistical analysis of the two-slit experiment: Or some remarks on quantum probability

    • D. Costantini

    OriginalPaper Pages: 2349 - 2362

14. The modal interpretation of quantum mechanics and some of its relativistic aspects

    • Dennis Dieks

    OriginalPaper Pages: 2363 - 2375

15. Gleason's theorem and completeness criteria

    • Anatolij Dvurečenskij

    OriginalPaper Pages: 2377 - 2388

16. Quantum logical interpretation of quantum mechanics: The role of time

    • A. A. Grib

    OriginalPaper Pages: 2389 - 2400

17. Quantum measurements and information theory

    • K. -E. Hellwig

    OriginalPaper Pages: 2401 - 2411

18. Fermion flows and supersymmetry

    • R. L. Hudson

    OriginalPaper Pages: 2413 - 2422