Kazemilari, Mansooreh, Ali Mohamadi, Abbas Mardani, and Justas Streimikis. “Network Topology of Renewable Energy Companies: Minimal Spanning Tree and Sub-Dominant Ultrametric for the American Stock”. Technological and Economic Development of Economy 25, no. 2 (February 7, 2019): 168-187. Accessed November 28, 2024. https://mma.vgtu.lt/index.php/TEDE/article/view/7686.