Wentker, Alexander Max Planck Institute for Comparative Public Law and International Law, Max Planck Society;
https://www.ejiltalk.org/at-war-when-do-states-supporting-ukraine-or-russia-become-parties-to-the-conflict-and-what-would-that-mean/ (全文テキスト（全般）)
Wentker, A. (2022). At War: When Do States Supporting Ukraine or Russia become Parties to the Conflict and What Would that Mean? EJIL Talk! Blog of the European Journal of International Law. Retrieved from https://www.ejiltalk.org/at-war-when-do-states-supporting-ukraine-or-russia-become-parties-to-the-conflict-and-what-would-that-mean/.
