![](http://www.alamy.com/thumbs/6/DA5953C9-EB77-45A2-A55A-3AAED554D292/D5DX40.jpg)
Portrait of Tatiana Ehrenfest, Mathematician
Size: 1164px × 1718px
Photo credit: © Bygone Collection / Alamy / Afripics
License: Licensed
Model Released: No
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