@misc{optimization+of+thread+root+undercut+in+the+planetary+roller+screw,
    author = {Lisowski, Filip},
    title = {Optimization of thread root undercut in the planetary roller screw},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2017},
    number = {Y. 114, vol. 9}
}