Manuscript on the question of the orthogonality.

Draft for "Continuous groups in quantum mechanics".

Final speech for the celebration of the 50th anniversary of the theory of the relativity.

Discussion on quantized field theories.

Integration of cosmological equations.

Remarks on a paper by D. Blanusa on relativistic thermodynamics.

Preface to new edition of relativity article published in the Mathematical Encyclopedia.

Misprints in "The theory of relativity".

Meson theory