Abstract:From the Editorial Board. This is the presentation of the author's talk given at the 10th International Symposium on the Interaction of Leptons and Photons at High Energies (24–29 August 1981, Bonn, Germany).
PACS:01.10.Fv, 12.15.-y, 12.60.-i, 14.80.-j
Received:September 4, 2012 Accepted: September 4, 2012
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