@misc{Lepp_A._G._Karta_[ca,
 author={Lepp, A. G.},
 copyright={Public Domain},
 address={Petrograd (St. Petersburg)},
 howpublished={online},
 year={[ca 1917]},
 publisher={1oe Gosudarstv. Kartografičeskoe zavedenie A. Il'ina},
 language={rus},
 title={Karta rajona obsledovannago saânskoj ekspediciej departamenta Zemledeliâ v 1914-1916 g.g.},
}