TY - JOUR TI - Metal-Detecting for Cultural Objects until ‘There Is Nothing Left’: The Potential and Limits of Digital Data, Netnographic Data and Market Data for Open-Source Analysis N1 - Electronic journal U1 - Essential JF - Arts AU - Hardy, Samuel DO - 10.3390/arts7030040 PY - 2018-08-13 SP - 40 SN - 2076-0752 IS - 3 VL - 7 ER -