Combustion at the late Early Pleistocene site of Cueva Negra del Estrecho del Río Quípar (Murcia, Spain) by Walker, M, Anesin, D, Angelucci, D, Avilés-Fernández, A, Berna, F, Buitrago-López, A, Fernández-Jalvo, Y, Haber-Uriarte, M, López-Jiménez, A, López-Martínez, M, Martín-Lerma, I, Ortega-Rodrigáñez, J, Polo-Camacho, J, Rhodes, S, Richter, D, Rodríguez-Estrella, T, Schwenninger, J-L, Skinner, A