This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Mandelbrot in Warsaw . en Benoit Mandelbrot and his fractal Photo taken in Warsaw during the lecture titled The Rough and the Smooth Own Olaf Benot Mandelbrot
Page 2023 Free-images.com. All images are Public Domain