@Article{gh-22-43-1967,
AUTHOR = {B\"osiger, K.},
TITLE = {Arbeitsunterrichtliche Ansätze für den Geographieunterricht},
JOURNAL = {Geographica Helvetica},
VOLUME = {22},
YEAR = {1967},
NUMBER = {1},
PAGES = {43--45},
URL = {https://gh.copernicus.org/articles/22/43/1967/},
DOI = {10.5194/gh-22-43-1967}
}