The Archaeological Foundation (Polish version only) The Nationwide Association of Private Archaeological Firms (Polish version only) The Scientific Association of Polish Archaeologists, Department in Voivodeship of Lubusz (Polish version only) The Scientific Association of Polish Archaeologists (Polish version only) The Archaeological Museum of Middle Oder Riverside (Polish version only) The Chamber of Construction of the Voivodeship of Lubusz (Polish version only) The Archeoplan - Digital Archaeological Documentation (Polish version only) The Laboratory of Absolute Dating of Marek Krąpiec (English version available)
