Antoshin, Aleksey, Evgenij Rukosuev, and Sergej Smirnov. 1. “Sennar’s Gold: Egypt and Sudan through the Eyes of a 19th Century Ural Gold Miner”. Quaestio Rossica, no. 2 (1), 295 - 308. https://doi.org/10.15826/qr.2014.2.055.