@misc{some+remarks+of+jan+sleszynski+regarding+foundations+of+amp+nbsp+mathematics+of+stanislaw+lesniewski,
    author = {Obojska, Lidia},
    title = {Some remarks of Jan Śleszyński regarding foundations of mathematics of Stanisław Leśniewski},
    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. 2-NP}
}