@inproceedings{1055782,
    title = "The development of a laser statue cleaner",
    author = "Asmus, John F.",
    year = "1976",
    pages = "137-141",
    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"
}