@misc{utility+assessment+of+biomass+fly+ash+for+production+of+concrete+products,
    author = {Popławski, Jakub i Lelusz, Małgorzata},
    title = {Utility assessment of biomass fly-ash for production of concrete products},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2017},
    number = {Y. 114, vol. 8}
}