Portny, Eugeniusz. 2025. «Chapter IV. Chairmanship of the Organization for Security and Cooperation in Europe – Institutional and Historical Context . 65». в Poland’s Chairmanship in the Organization for Security and Co-operation in Europe in 2022: Objectives and Their Implementation in the Face of the Russian-Ukrainian War, под редакцией Michał Dulak, 65-87. Poland: Księgarnia Akademicka Publishing. https://doi.org/10.12797/9788383682594.05.