@inproceedings{1055825, title = "An improved method for vacuum consolidation of decayed stone sculpture", author = "Hempel, K.", year = "1976", pages = "163-166", 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" }