Methods of art history tested against prehistory, session C74 : Spiral and circular forms : the most common rock art in the world?, session C81 : European cave art, session C85 : Euro-Mediterranean rock art studies, session S02 : Global state of the art,  session S07 : Current state of North American rock art, session WS37 /
International Congress of Prehistoric and Protohistoric Sciences(15th :2006 :Lisbon, Portugal)
Groenen, Marc.
Martens, Didier,1960-
Kolber, Jane.
Clegg, John,1935-
Fernández Distel, Alicia A.
Sharpe, Kevin J.
Clottes, Jean.
Abreu, Mila Simoẽs de.
Kumar, Giriraj.
Bednarik, Robert G.
Keyser, James D.
Greer, Mavis.
Fidalgo, Cláudia.
Oosterbeek, Luís.
International Union of Prehistoric and Protohistoric Sciences.
Oxford : Archaeopress,
2010.
Includes bibliographical references.
Petroglyphs
Rock paintings
Cave paintings
Art, Prehistoric