1. Sacred site experience
2. Audretsch, D. B. & Belitski, M. (2015). Is happiness conducive to entrepreneurship? Exploring subjective well-being–entrepreneurship relationship across major European cities (Discussion Paper). Henley Centre for Entrepreneurship.
3. Blum, A. (2018). Landscape, architecture, and spirituality at the remote monastic communities of Mount Athos. 2018 NCUR.