@article{CMH_1944__17_138859,
     author = {Hans Bieri},
     title = {Ein {Beispiel} zum {Randwertproblem} der {Variationrechnung.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {262--277},
     publisher = {mathdoc},
     volume = {17},
     year = {1944},
     zbl = {0063.00381},
     url = {http://geodesic.mathdoc.fr/item/CMH_1944__17_138859/}
}