@article{ELMA_1982__37_141298,
     author = {Andrzej Makowski},
     title = {On a problem of {Erd\"os} and {Graham.}},
     journal = {Elemente der Mathematik},
     pages = {163--163},
     publisher = {mathdoc},
     volume = {37},
     year = {1982},
     zbl = {0488.10004},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1982__37_141298/}
}