The July 1989 issue of the popular science “Priroda” journal containing the round table discussions following the 100th Alexander Friedman anniversary conference held in Leningrad in 1988.
The participants in the round table are: Remo Ruffini, Humitaka Sato, Michael Turner, Marek Demianski, Moisei Markov, Andrei Sakharov, Igor Novikov, Stanley Deser, Brandon Carter, Stephen Hawking and Andrei Linde.
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