Nguễyn-Phan, T. Tâm Max Planck Institute for Mathematics, Max Planck Society;
https://dx.doi.org/10.4310/MRL.2021.v28.n4.a5 (Publisher version)
https://doi.org/10.48550/arXiv.1911.08858 (Preprint)
MPIM Preprint series 2020-3.pdf (Preprint), 4MB
Freedman, M., & Nguễyn-Phan, T. T. (2021). Non-separating immersions of spheres and Bing houses. Mathematical Research Letters, 28(4), 1085-1106. doi:10.4310/MRL.2021.v28.n4.a5.