@article{MAN_1962__145_160903,
     author = {W. Damk\"ohler},
     title = {Theorie des isoperimetrischen {Problems} nach der {Tonellischen} {Halbstetigkeitsmethode.}},
     journal = {Mathematische Annalen},
     pages = {1--49},
     publisher = {mathdoc},
     volume = {145},
     year = {1962},
     zbl = {0102.31703},
     url = {http://geodesic.mathdoc.fr/item/MAN_1962__145_160903/}
}