@article{MOMA_1979__87_177901,
     author = {Lutz Lucht and Friedemann Tuttas},
     title = {Aufeinanderfolgende {Elemente} in multiplikativen {Zahlenmengen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {15--20},
     publisher = {mathdoc},
     volume = {87},
     year = {1979},
     zbl = {0369.10029},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1979__87_177901/}
}