@misc{young+s+modulus+test+in+two+directions+on+the+basis+of+eigenfrequencies+in+concrete+beams,
    author = {Musiał, Michał},
    title = {Young’s modulus test in two directions on the basis of eigenfrequencies in concrete beams},
    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. 3-B}
}