Chousionis, Vasileios, Sean Li, Vyron Vellis, and Scott Zimmerman. “Bi-Lipschitz Embeddings of Heisenberg Submanifolds into Euclidean Spaces”. Annales Fennici Mathematici 45, no. 2 (August 1, 2020): 931–955. Accessed November 22, 2024. https://afm.journal.fi/article/view/135893.