@misc{,
 copyright={Creative Commons Attribution BY-SA 3.0 PL license},
 journal={Documentation of metallurgical analyses of the archaeological artefact made at the Central Archeometric Laboratory in Warsaw},
 howpublished={online},
 URL={http://www.rcin.org.pl/iae/Content/112632/Galeria/WA308_114035_188-CL-CH-3_tarczka-spiralna_I.pdf},
}