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Keywords from Image Description:
ZingerWJ. Portrait of Vasily Zinger Russian mathematician and botanist ZingerWJ UTC ZingerWJ Unknown derivative work Bff Sepiated Bff ZingerWJ PDold PDold original upload log This image is derivative work of the following images File ZingerWJ with PDold PDold Bff Bytes no Portrait of Vasily Zinger hist msu ru