@article{10_4064_aa_87_2_159_169,
     author = {Hui-Qin Cao and Zhi-Wei Sun},
     title = {On sums of distinct representatives},
     journal = {Acta Arithmetica},
     pages = {159--169},
     publisher = {mathdoc},
     volume = {87},
     number = {2},
     year = {1998},
     doi = {10.4064/aa-87-2-159-169},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-87-2-159-169/}
}