@ARTICLE{Lech_Jacek_In_2008,
 author={Lech, Jacek},
 number={Nr 2 (18) 2008 Memory},
 journal={ACADEMIA. The magazine of the Polish Academy of Sciences},
 pages={16-19},
 howpublished={online},
 year={2008},
 publisher={Polish Academy of Sciences},
 language={eng},
 abstract={Thousands of years ago, before technologies for producing bronze and iron were discovered, human communities exploited various deposits of siliceous rocks, which they used to produce tools and weapons. We now know more than 250 flint mines from the Stone and Bronze Ages throughout Europe, including more than 20 in Poland. One of the most impressive is the ancient mine in Krzemionki Opatowskie (Poland).},
 type={Article},
 title={In the Realm of the Devil},
 URL={http://journals.pan.pl/Content/128254/PDF/7_ACADEMIA_EN_2_18_2008_Lech_In_the_Realm.pdf},
}