Carmesin, Johannes, and Jan Kurkofka. “Characterising 4-Tangles Through a Connectivity Property”. The Electronic Journal of Combinatorics 32, no. 3 (August 8, 2025): P3.26. Accessed March 30, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v32i3p26.