q=by+%28federal+republic+of+germany%29n.n.lebedev...et+al+%28united+states%29w.ledermann&searchType=standard&isFacet=true&view=standard&searchWay=author&rows=10&sortWay=score&sortOrder=desc&searchWay0=marc&logical0=AND
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by (Federal Republic of Germany)N.N.Lebedev...et al (United States)W.Ledermann