@misc{Grot_Konstantin_Âkovlevič_(1853-1934)_Moraviâ_1881,
 author={Grot, Konstantin Âkovlevič (1853-1934)},
 address={Sanktpeterburg},
 howpublished={online},
 year={1881},
 publisher={Tipografìâ Imperatorskoj Akademìi Nauk},
 title={Moraviâ i Mad'âry s poloviny IX do načala X veka},
}