@article{ELMA_1973__28_141108,
     author = {Paul Erd\"os},
     title = {\"Uber die {Zahlen} der {Form} ...(n) - n und  n - ...(n).},
     journal = {Elemente der Mathematik},
     pages = {83--86},
     publisher = {mathdoc},
     volume = {28},
     year = {1973},
     zbl = {0272.10003},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1973__28_141108/}
}