TY - JOUR A1 - Portmann, J.-P. T1 - Un siècle d'observation des glaciers suisses (1881-1980) JO - Geogr. Helv. J1 - GH VL - 36 IS - 1 SP - 1 EP - 8 Y1 - 1981/03/31 PB - Geographisch-Ethnographische Gesellschaft Zürich SN - 2194-8798 UR - https://gh.copernicus.org/articles/36/1/1981/ L1 - https://gh.copernicus.org/articles/36/1/1981/gh-36-1-1981.pdf DO - 10.5194/gh-36-1-1981 ER -