Johnson, Robert G. “Did a Bi-Polar Multi-Level Oceanic Oscillation Cause the Little Ice Age and Other High Latitude Climate Extremes?”. JOURNAL OF ADVANCES IN NATURAL SCIENCES 3, no. 1 (March 17, 2015): 228–236. Accessed November 24, 2024. https://rajpub.com/index.php/jns/article/view/5020.