@misc{functional+differential+equations+of+second+order,
    author = {Skóra, Lidia},
    title = {Functional differential equations of second order},
    journal = {Czasopismo Techniczne. Nauki Podstawowe},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2009},
    number = {R. 106, Z. 8, 1-NP}
}