“An Adaptive Man: Hardiness Resources In the Conditions of System Crises at the Turn of the XIX-XX and the XX- XXI Centuries”. Mediterranean Journal of Social Sciences 6, no. 2 S3 (March 26, 2015): 136. Accessed April 28, 2024. https://www.richtmann.org/journal/index.php/mjss/article/view/6034.