@article{MAN_1923__89_158993,
     author = {P. Hertz},
     title = {\"Uber {Axiomensysteme} f\"ur beliebige {Satzsysteme.} {Teil} {II.} {S\"atze} h\"oheren {Grades.}},
     journal = {Mathematische Annalen},
     pages = {76--102},
     publisher = {mathdoc},
     volume = {89},
     year = {1923},
     zbl = {49.0683.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1923__89_158993/}
}