@misc{Sawicka_Joanna_Pozostałości_2017,
 author={Sawicka, Joanna},
 volume={62},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Archeologia Polski},
 howpublished={online},
 year={2017},
 publisher={Instytut Archeologii i Etnologii Polskiej Akademii Nauk},
 language={pol},
 abstract={During excavations on a site of construction ceramics workshop dated to the end of 12th century found were several objects pointing to its wider activity. These were fragments of three crucibles filled with glass bodies and a waste in form of a glazed and ornamented tile. Physicochemical examinations of glass bodies proved the presence of alkaline lead glass of two chemical types: lead-potassium-silicium (PbO-K2O-SiO2) and lead-potassium-calcium-magnesium-(aluminium)-silicium (PbO-K2O-CaO-MgO-[Al2O3]-SiO2). The workshop was to manufacture complex equipment for a representative building: either a castle or a church},
 type={Text},
 title={Pozostałości produkcji szklarskiej odkryte w pracowni ceramiki budowlanej na Górze Lecha w Gnieźnie},
 URL={http://www.rcin.org.pl/iae/Content/66205/PDF/WA308_85627_P320_Pozostalosci-produk_I.pdf},
 keywords={Early Middle Ages, Great Poland, Gniezno, construction ceramics, glass workshop, crucibles, lead glass},
}