*Sîrbu, Valeriu; Ştefan, Dan; Garganciuc, Cristina; Matei, Sebastian. A Dacian Sacred Enclosure in Carpathian Mountains - Pietroasele - Gruiu Dării In: CAA 2003, Enter the Past. Vienna 2003. BAR International Series 1227. Vienna, 2003, p.72-75.