@misc{the+negative+and+positive+pressure+system+of+natural+balanced+ventilation,
    author = {Gaczoł, Tomasz},
    title = {The negative and positive pressure system of natural balanced ventilation},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {Wydawnictwo Politechniki Krakowskiej},
    date = {2020},
    number = {Vol. 117, iss. 1}
}