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Lomonosov Moscow State University, Moscow, Russia
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St. Petersburg State polytechnical University, St.Petersburg, Russia
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G.G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, Nizhny Novgorod, Russia
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Max Planck Institute for science of light, Erlangen, Germany
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Vilnius University, Vilnius, Lithuania
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