Zilhão, João2018-07-272018-07-271995http://hdl.handle.net/10400.26/23445engArte Rupestre / Rock ArtPolémica / PolemicThe Stylistically Paleolithic Petroglyphs of the Côa Valley (Portugal) are of Paleolithic Age: a Refutation of their ‘Direct Dating’ to Recent Timesjournal article