@misc{impact+of+foam+to+column+operation, author = {Senger, Gerrit i Wozny, Günter}, title = {Impact of foam to column operation}, journal = {Czasopismo Techniczne. Mechanika}, address = {Kraków}, publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>}, date = {2012}, number = {R. 109, Z. 5, 1-M} }