@article{NGWGMP_1922__1922_59121,
     author = {O. M\"ugge},
     title = {\"Uber isotrop gewordene {Krystalle}},
     journal = {Nachrichten von der Gesellschaft der Wissenschaften zu G\"ottingen, Mathematisch-Physikalische Klasse},
     pages = {110--120},
     publisher = {mathdoc},
     volume = {1922},
     year = {1922},
     url = {http://geodesic.mathdoc.fr/item/NGWGMP_1922__1922_59121/}
}