@misc{comparative+analysis+of+drag+reduction+flow+efficiency+through+the+use+of+surfactants+and+high+molecular+polymer+additives,
    author = {Matras, Zbigniew i Kopiczak, Bartosz},
    title = {Comparative analysis of drag reduction flow efficiency through the use of surfactants and high molecular polymer additives},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2015},
    number = {Y. 112, iss. 1-M}
}