@article{ELMA_1954__9_140605,
     author = {B.L. van der Waerden},
     title = {Einfall und {\"Uberlegung} in der {Mathematik.} {II.}},
     journal = {Elemente der Mathematik},
     pages = {49--56},
     publisher = {mathdoc},
     volume = {9},
     year = {1954},
     zbl = {0055.03802},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1954__9_140605/}
}