Babakina T.N., Zhukova N.S. «On the modal function of preterite-present verbsin Old High German» // 2011. №1 (13) C.29-41
Tazranova Alena R. «Semantics and function of imperative forms in the Altai language» // Siberian Journal of Philology 2020. №4 C.173-187
