@misc{wladyslaw+zajaczkowski+and+differential+equations+in+poland+in+the+second+half+on+the+nineteenth+century,
    author = {Koroński, Jan},
    title = {Władysław Zajączkowski and differential equations in Poland in the second half on the nineteenth century},
    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. 1-NP}
}