@misc{behaviour+of+cement+concrete+at+high+temperature,
    author = {Hager, Izabela},
    title = {Behaviour of cement concrete at high temperature},
    journal = {Bulletin of the Polish Academy of Sciences, Technical Sciences},
    publisher = {Division IV Technical Sciences of the Polish Academy of Sciences},
    date = {2013},
    number = {vol. 61, no. 1}
}