 
                |  | Geochemical provenance analyses of Roman lava millstones north of the Alps : a study of their distribution and implications for the beginning of Roman lava quarrying in the Eifel region (Germany) | Gluhak, Tatjana Mirjam; Hofmeister, Wolfgang | 2011 | |
|  | Roman lava quarries in the Eifel region (Germany) : geochemical data for millstone provenance studies | Gluhak, Tatjana Mirjam; Hofmeister, Wolfgang | 2009 |