@article{10_4064_aa_69_2_113_119,
     author = {Norbert Hegyv\'ari},
     title = {Note on a problem of {Ruzsa}},
     journal = {Acta Arithmetica},
     pages = {113--119},
     publisher = {mathdoc},
     volume = {69},
     number = {2},
     year = {1995},
     doi = {10.4064/aa-69-2-113-119},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-69-2-113-119/}
}