TransliterationPetrov Petr A. Etnografski elementi na slavyano-balto-germanska obshhnost. Jetnograficheskie jelementy slavyano-balto-germanskoj obshhiny. In Russian
In EnglishPetrov Petar A. Etnografski elementi the Slavic-Balto-germanska obshhnost. ethnographic elements Slavic-Balto-German community. In Russian, Sofia
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