2021-2023, European Council of Churches, Vice-Chair, Assembly Planning Committee for General Assembly 2023.
09/2021, Theologische Fortbildung, »Hoffnung und Kritik« für Pfarrer:innen und Lehrer:innen, Eberhard Karls Universität Tübingen, Co-Organisation mit Christian Schlenker
01/12/2021 – 01/12/2022, Mitglied des Exekutivteams, Brot für die Welt
Petković T., A Christian Perspective on Genetic Manipulations, Astra Salvensis, Review of History and Culture, IV, No. 7, 2016, 235-246.
Petković T., Orthodox Perspective on the Status of the Embryo, Astra Salvesis, Review of History and Culture, 2017, No. 9, 21-28.
Petković T., (De)Secularization from Serbian Orthodox Youth perspective,in: Mission in Secularised Contexts of Europe. Contemporary Narratives and Experience, Oxford: Regnum Publ., 2018, 173-179.
Petkovic T., Is the Technological Revolution Reshaping Our Understanding of Love? Ecumenical review, Volume73, Issue3, July 2021, 451-462
Petkovic T., The Case of the Serbian Orthodox Church, in: Together in the Mission of God, WCC 2022.
Petkovic T., In What Transformation Do We Believe?, in: Rethinking Responsibility, Hrsg. E. Gräb- Schmidt, F. Menga, C. Schlenker, Tübingen 2023.
Petkovic T., Digitale Vergöttlichung?! Kann das Digitale helfen, die Theosis zu verstehen?, in Theologie angesichts des Digitalen, Hrsg. R. Winter-Tietel, L. Ohly, 2023.
Berekfürdő, Hungary, 23/02/2016 – 26/02/2016, Council for World Mission, Mission in Secularised Contexts, Paper presented: (De)Secularization from Serbian Orthodox Youth perspective.
Belgrade, Serbia, 05/2016 Faculty of Orthodox Theology, Serbian Theology Today. Paper Presented: Orthodox Perspective of Surrogate Motherhood.
Berlin, Germany 13/09/2021 – 15/09/2021, WCC, Communication for Social Justice in Digital Age.
Inter University Center Dubrovnik, Croatia 20/10/2021 – 26/10/2021, Modern Philosophy of Religion, Paper presented: Transhumanismus als hermeneutische Herausforderung.
Oxford, England, 11/03/2022 – 11/03/2022, Interruptions – Theological Responses to Suffering, Crisis, and Death. Paper presented: How Is Technology Changing the Way We Suffer?
Frankfurt, Germany 22/09/2022 – 23/09/2022 Theologie Angesichts Digitalen, Paper presented: Digitale Vergöttlichung? Kann das Digitale helfen, die Theosis zu verstehen?
Trinity Theological Seminary, Accra, Ghana, 05/12/2022 – 07/12/2022, Pandemics and Pedagogy: An Ecumenical Consultation on Theological Education. Paper Presented: Online Ecumenical Dialog, Reclaiming the Dialogue.
Depok, Jakarta, Indonesia, 19/10/2023 – 21/10/2023, Reading the Signs of Times, Paper presented: Signs of the Times from an East European Perspective- Biblical and Theological Insights