@inproceedings{1048028,
    title = "A brief review on the applicability of geophysical methods for detection of the subsurface cavities",
    author = "Τσόκας, Γρηγόριος Ν.",
    year = "1983",
    pages = "161-168",
    publisher = "Τυπογραφείο Νικ. Δέρβη",
    booktitle = "Διεθνές συμπόσιο για τα προβλήματα των διευθετημένων σπηλαίων"
}