{"id":"000083477","type":"book","title":"Industries in quartzite and the beginning of the use of flint in the lower and middle Palaeolithic sequence of the Bajo Guadalquivir","pages":"135-140","container-title":"Non-flint stone tools and the Palaeolithic occupation of the Iberian Peninsula","author":[{"family":"VallespĂ­ PĂ©rez","given":"Enrique"}]}