Põldsam, A. „Prayer for Rain by Elijah and by Honi the Circle-Maker. Two Ends of the Same Concept in the Light of Lazar Gulkowitsch’ Ideas“. Usuteaduslik Ajakiri, kd 72, nr 1, jaanuar 2018, lk 59-77, https://ojs.utlib.ee/index.php/UA/article/view/23749.