File:IgnatowskiRelativ2.png
D.H uploaded "File:IgnatowskiRelativ2.png" {{Information |Description=Fig. 2 |Source=File:IgnatowskiRelativ.djvu |Date=1910 |Author=Vladimir Sergeyevitch Ignatowski |Permission={{PD-old-auto-1923|1=1942}} |other_versions= }} Category:Vladimir Sergeyevitch Ignatowski
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