@misc{studies+of+the+permanent+magnet+dc+machine,
    author = {Bogusz, Piotr i Korkosz, Mariusz i Wygonik, Piotr},
    title = {Studies of the permanent magnet DC machine},
    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-E}
}