J. Ramírez

Historically unprecedented global glacier decline in the early 21st century

P. Holmlund, M. Hoelzle, I. Severskiy, 2015 .

Review and reassessment of hazards owing to volcano–glacier interactions in Colombia

C. Huggel, J. Thouret, J. Ceballos, 2007, Annals of Glaciology.

Fast shrinkage of tropical glaciers in Colombia

C. Huggel, W. Haeberli, J. Ceballos, 2006, Annals of Glaciology.