Magnetic properties of cherts from the Basque-Cantabrian basin and surrounding regions: archeological implications - Larrasoaña, Juan Cruz; Beamud Amorós, Elisabet; Olivares, Maitane; Murelaga, Xabier; Tarriño Vinagre, Antonio; Baceta, Juan Ignacio; Etxebarria Loizate, Nestor (2016)