Votrin, Valery (January 2005). "The Orthodoxy and Sustainable Development a Potential for Broader Involvement of the Orthodox Churches in Ethiopia and Russia". Environment, Development and Sustainability. 7 (1): 9–21. doi:10.1007/s10668-003-5053-9. S2CID154784459.
Votrin, Valery (January 2005). "The Orthodoxy and Sustainable Development a Potential for Broader Involvement of the Orthodox Churches in Ethiopia and Russia". Environment, Development and Sustainability. 7 (1): 9–21. doi:10.1007/s10668-003-5053-9. S2CID154784459.