@article{PMF_1936_43_1_a17,
     author = {H\"older, Ernst},
     title = {Die {Lichtensteinsche} {Methode} f\"ur die {Entwicklung} der zweiten {Variation,} angewandt auf das {Problem} von {Lagrange}},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {307--346},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {1936},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/PMF_1936_43_1_a17/}
}