@article{ELMA_1948__3_140491,
     author = {Heinrich Tietze},
     title = {\"Uber die {Anzahl} der stabilen {Ruhelagen} eines {W\"urfels.}},
     journal = {Elemente der Mathematik},
     pages = {97--100},
     publisher = {mathdoc},
     volume = {3},
     year = {1948},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1948__3_140491/}
}