@misc{vibration+measurements+in+analysis+of+historical+structures,
    author = {Grosel, Jacek i Sawicki, Wojciech i Wójcicki, Zbigniew},
    title = {Vibration measurements in analysis of historical structures},
    address = {Warszawa},
    publisher = {Stowarzyszenie Konserwatorów Zabytków},
    date = {2012}
}