Has participated in:
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Grundkonsens - Grunddifferenz : Studie des Strassburger Instituts für Ökumenische Forschung ; Ergebnisse und Dokumente
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Local ecumenism : how church unity is seen and practised by congregations
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Johannes Calvin ökumenisch gelesen
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Hope of unity: living ecumenism today : celebrating 40 years of the Ecumenical Institute Tantur ; [presents lectures given at the Tantur conference 26 - 27 October 2012]