1. Hannestad , N. 1988 Roman art and imperial policy
2. Keppie , L. 1983 Colonisation and veteran settlement in Italy 47-14 BC
3. Patterson , J. R. 2006 Landscapes and cities. Rural settlement and civic transformation in early imperial Italy
4. Tagliamonte , G. 1997 I sanniti. Caudini, Irpini, Pentri, Carricini, Frentani