The (really amazing) 3D sculpture in this post appears to come from this paper, which also shows several others: https://naml.us/paper/irving_segerman2012_fract

The (really amazing) 3D sculpture in this post appears to come from this paper, which also shows several others: https://naml.us/paper/irving_segerman2012_fractal.pdf https://naml.us/paper/irving_segerman2012_fractal.pdf