@misc{_Karta_[ca,
 copyright={Public Domain},
 address={[S.l.]},
 address={(S.P.B. [S. Peterburg])},
 howpublished={online},
 year={[ca 1903]},
 publisher={[s.n.]},
 publisher={(Kartogr. zav. A.Il'ina)},
 language={rus},
 title={Karta Rossìjskoj Imperìi},
 keywords={political-administrative maps, Russia},
}