@misc{gentle+synchronization+of+two+speed+high+power+synchronous+motor+out+of+over+synchronous+speed,
    author = {Zalas, Paweł i Zawilak, Jan},
    title = {Gentle synchronization of two-speed high-power synchronous motor out of over synchronous speed},
    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}
}