Knyazeva, Helena N. “The Riddle of a Human Being: A Human Singularity of Co-Evolutionary Processes”. Cosmos and History: The Journal of Natural and Social Philosophy 4, no. 1-2 (October 11, 2008): 244–259. Accessed April 23, 2024. http://cosmosandhistory.org/index.php/journal/article/view/106.