Was the Bulgarian representative to the Second International's London Congress (part of his speech was published in Karl Kautsky's Die Neue Zeit)
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Was the Bulgarian representative to the Second International's London Congress (part of his speech was published in Karl Kautsky's Die Neue Zeit)
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-19 from Wikipedia. The archived copy is preserved so this citation survives link rot.