2011-08-15_15-03-04_IMG_6409

84/733 15.08.11 14:03 2011-08-15_15-03-04_IMG_6409

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original available here

Slide show :

Portraits of famous russian mathematicians

Portraits of famous russian mathematicians

Camera Info:

File Size: 1579641	Resolution: 3456 x 2304	Camera: Canon EOS DIGITAL REBEL XT
Exposure time:1/40s	Aperture: 4.5	Focal length: 17,0 mm