@article{MS2_1956__4_165616,
     author = {H.W. KUHN},
     title = {A note on },
     journal = {Mathematica Scandinavica},
     pages = {143--146},
     publisher = {mathdoc},
     volume = {4},
     year = {1956},
     url = {http://geodesic.mathdoc.fr/item/MS2_1956__4_165616/}
}