Abrahamsen, T. A., Aliaga, R. J., Lima, V., Martiny, A., Perreau, Y., Prochazka, A. & Veeorg, T. (2024). Delta-points and their implications for the geometry of Banach spaces. Journal of the London Mathematical Society,109 (5).
https://doi.org/10.1112/jlms.12913