@misc{selected+qualitative+changes+to+the+solving+of+engineering+optimization+problems,
    author = {Boroń, Jacek},
    title = {Selected qualitative changes to the solving of engineering optimization problems},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2014},
    number = {Y. 111, iss. 6-B}
}