@article{MOMA_1970__74_177487,
     author = {Helmut Groemer},
     title = {\"Uber {Treffanzahlen} in {Figurengittern.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {21--29},
     year = {1970},
     volume = {74},
     zbl = {0199.57103},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1970__74_177487/}
}