Birch, Max T., Cortés-Ortuño, David, Khanh, Nguyen D., Seki, Shinichiro, Štefančič, Aleš, Balakrishnan, Geetha, Tokura, Yoshinori, Hatton, Peter D., "Topological defect-mediated skyrmion annihilation in three dimensions", Communications Physics, 2025