@misc{_[Piotr,
 howpublished={online},
 language={rus},
 language={fre},
 title={[Piotr III Fedorovič]},
 keywords={portrait, man, whole-length, emperor, russian graphics, heliogravure, Piotr III Fedorovic (1728-1762), 19 w., 19. Jh., 19 century, Antropoff, Alexei Petrovic (1716-1795)},
}