1. A documentation of glacier tongue variations and lake developments in the Cordillera Blanca;Ames;Zeitschrift fur Gletscherkunde und Glazialgeologie,1998
2. Dianosing the imbalance of Glaciar Santa Rosa, Cordillera Raura, Peru;Ames;Journal of Glaciology,1996
3. Glacier Inventory of Peru, Part 1;Ames,1989
4. Comparison of surface and tropospheric temperature trends estimated from a 63-station radiosonde network, 1958–1998;Angell;Geophysical Research Letters,1999
5. Measurement of the retreat of Qori Kalis glacier in the tropical Andes of Peru by terrestrial photogrammetry;Brecher;Photogrammetric Engineering and Remote Sensing,1993