Robuta

https://researchportal.helsinki.fi/en/publications/extension-of-bilipschitz-maps-of-differentiable-curves/ Extension of Bilipschitz Maps of Differentiable Curves - University of Helsinki extension maps differentiable curves university https://www.ideals.illinois.edu/items/115508 BiLipschitz embeddings and nonembeddings of metric spaces and related problems | IDEALS embeddings metric spaces related problems