Archivo: Marina Ratner

Description: Marina Ratner, ergodic theorist, at Berkeley in 1988.
Title: Marina Ratner
Credit: https://opc.mfo.de/detail?photo_id=9536
Author: George Bergman
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Usage Terms: GNU Free Documentation License 1.2
License: GFDL 1.2
License Link: http://www.gnu.org/licenses/old-licenses/fdl-1.2.html
Attribution Required?: Yes