@article{MAN_1955__129_160442,
     author = {H. Schaefer},
     title = {\"Uber die {Methode} der a {priori-Schranken.}},
     journal = {Mathematische Annalen},
     pages = {415--416},
     publisher = {mathdoc},
     volume = {129},
     year = {1955},
     zbl = {0064.35703},
     url = {http://geodesic.mathdoc.fr/item/MAN_1955__129_160442/}
}