Klein-Fock equation, proper-time formalism and symmetry of Hydrogen atom

Abstract

We present main points of some of Fock papers in Quantum Theory, which were not properly followed when published.

Comments: 9 pages, Latex, to be published in the Proceedings of the UNESCO International School of Physics "Quantum Theory ' part 2, commemorating the 100th anniversary of the birth of V.A.Fock. St.Peterburg, SPbU, 1999