Pskhu R.V. Historic-Philosophical Method as a Way of Interpreting a Concept of Brahman in the Early Vishishta-Advaita School // Vestnik RUDN, Philosophy Series. 2014, No. 1. P. 101-104.
The paper deals with the concept of Brahman in the early Viśiṣṭa Advaita Vedānta School, particularly
in Yāmunācārya's treatise Īśvarasiddhi, the main passages of which are lost.