@misc{investigation+of+crown+cork+drawing+force, author = {Cępa, Paweł i Lisowski, Edward}, title = {Investigation of crown cork drawing force}, journal = {Technical Transactions, iss. 5. Mechanics, iss. 1-M, s. 13-20}, address = {Kraków}, publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>}, date = {2013} }