@misc{modeling+of+gas+flow+through+valve+crv,
    author = {Duda, Piotr i Duda, Roman},
    title = {Modeling of gas flow through valve (CRV)},
    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. 7-B}
}