File:Boyan petkanchin.jpg

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Summary

Description Photograph of the Bulgarian mathematician Academician Boyan Petkanchin and his wife
Date
Source family archive
Author Unknown authorUnknown author

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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Date/TimeThumbnailDimensionsUserComment
current15:38, 3 September 2007Thumbnail for version as of 15:38, 3 September 20071,497 × 990 (164 KB)Heops~commonswiki{{Information |Description=photograph of the Bulgarian mathematician Boyan Petkanchin |Source=family archive |Date=1938 |Author=unknown |Permission=yes |other_versions=no }}

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