1.- CHARACTERISTICS, ORIGIN AND AGE OF GIANT DEBRIS-COVERED GLACIERS IN THE HUANDOY-HUASCARAN MASSIF, CORDILLERA BLANCA, PERU; NEUQUEN, 1982 INQUA, REUNION REGIONAL SUDAMERICANA. ABSTRACTS/1982/NEUQUEN Ver registro 2.- LATE QUATERNARY VOLCANIC DEBRIS AVALANCHE AT CHIMBORAZO, ECUADOR; 1986 Ver registro