DRUZHININA, Jekaterina. Nikolaj Glubokowskij und Adolf von Harnack. Hyperboreus, Bern, v. 21, n. 2, p. 326–339, 2016. DOI: 10.36950/YKFZ6222. Disponível em: https://judaica.ch/index.php/Hyperboreus/article/view/12438. Acesso em: 15 jun. 2025.