Laish, Eran. “Contemplative Principles of a Non-Dual Praxis: The Unmediated Practices of the Tibetan ‘Heart Essence’ (sNying Thig) Tradition”. Buddhist Studies Review, vol. 31, no. 2, Jan. 2015, pp. 215-40, https://doi.org/10.1558/bsrv.v31i2.215.