@article{MOMA_1978__85_177857,
     author = {Rolf N\"urnberg},
     title = {\"Uber {Gleichgewichtszust\"ande} der {Druckfunktion.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {125--136},
     publisher = {mathdoc},
     volume = {85},
     year = {1978},
     zbl = {0345.28011},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1978__85_177857/}
}