@inproceedings{1055994,
    title = "Processes of destructing sandstones in relic buildings according to their binding agents",
    author = "Penkala, Barbara and Bralewska, Ewa",
    year = "1976",
    pages = "219-224",
    booktitle = "2ον Διεθνές συμπόσιον επί της καταστροφής των λίθων είς κατασκευάς. 2me Colloque international sur la détérioration des pierres en oeuvre. 2nd International symposium on the deterioration of building stones"
}