entity_id,source_id,evidence_type,source_note ENT_CEL_MATRES,SRC_DUVAL_DIEUX_GAULE,scholarly attestation,Duval (1976) pp. 55-60: survey of Matres inscriptions by region; iconographic analysis of the seated triad. ENT_CEL_MATRES,SRC_GREEN_CELTIC_GODS,scholarly attestation,Green (1992) pp. 151-156: Matres/Matrones iconography across Gaul and Britain. ENT_CEL_MATRES,SRC_OLMSTED_GODS_CELTS,scholarly attestation,Olmsted (1994) pp. 299-312: Matres as the most epigraphically attested divine category in Celtic religion; comparative analysis.