@article{MOMA_1980__89_177966,
     author = {Melvyn B. Nathanson},
     title = {Connected {Components} of {Arithmetic} {Graphs.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {219--222},
     publisher = {mathdoc},
     volume = {89},
     year = {1980},
     zbl = {0437.05039},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1980__89_177966/}
}