@misc{Tsonev_Tsoni_Neolithic_1990,
 author={Tsonev, Tsoni},
 editor={Polska Akademia Nauk. Instytut Historii Kultury Materialnej},
 editor={Polska Akademia Nauk. Instytut Archeologii i Etnologii},
 copyright={Rights Reserved - Restricted Access},
 address={Kraków},
 journal={Sprawozdania Archeologiczne},
 howpublished={online},
 year={1990},
 publisher={Polska Akademia Nauk. Instytut Historii Kultury Materialnej},
 language={eng},
 title={Neolithic Endscraper Variability of Northeast Bulgaria},
 type={Text},
 keywords={Neolithic -- Bulgaria, Neolithic flint tools, endscrapers, endscrapers -- typology},
}