Blong, Russell James, Felix Riede, and Qianyang Chen. “A Fuzzy Logic Methodology for Assessing the Resilience of past Communities to Tephra Fall: A Laacher See Eruption 13,000 Year BP Case”. Volcanica 1, no. 1 (July 22, 2018): 63–84. Accessed April 17, 2026. https://www.jvolcanica.org/ojs/index.php/volcanica/article/view/9.