Jelavich, B. „Russia and the Double Election of Alexander Cuza, 1858 — 1859; The Letters of S. I. Popov to N. K. Giers“. Südost-Forschungen, Bd. 1, Nr. 1, November 2021, S. 119-37, https://www.suedost-forschungen.de/portal/index.php/sof/article/view/12193.