@article{10_4064_aa_9_2_149_159,
     author = {P. Erd\"os and Hans Heilbronn},
     title = {On the addition of residue classes mod p},
     journal = {Acta Arithmetica},
     pages = {149--159},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1964},
     doi = {10.4064/aa-9-2-149-159},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-9-2-149-159/}
}