@ARTICLE{Zych_J._Bench_2013, author={Zych, J.}, number={No 4}, journal={Archives of Foundry Engineering}, howpublished={online}, year={2013}, publisher={The Katowice Branch of the Polish Academy of Sciences}, title={Bench Life (Work Time) of Moulding and Core Sands with Chemical Binders – a New, Ultrasound Investigation Method}, URL={http://www.journals.pan.pl/Content/87711/PDF/22_paper.pdf}, doi={10.2478/afe-2013-0094}, }