@misc{the+circulation+of+liquid+in+the+mixing+vessel+equipped+with+different+dual+impellers,
    author = {Duda, Andrzej i Kamieński, Jerzy},
    title = {The circulation of liquid in the mixing vessel equipped with different dual impellers},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2016},
    number = {Y. 113, iss. 2-M}
}