@article{MAN_1976__222_162859,
     author = {K. Steffen},
     title = {Isoperimetric {Inequalities} and the {Problem} of {Plateau.}},
     journal = {Mathematische Annalen},
     pages = {97--144},
     publisher = {mathdoc},
     volume = {222},
     year = {1976},
     zbl = {0345.49024},
     url = {http://geodesic.mathdoc.fr/item/MAN_1976__222_162859/}
}