@article{10_4064_cm136_1_5,
     author = {Xingwu Xia and Yongke Qu and Guoyou Qian},
     title = {A characterization of sequences with the minimum number of $k$-sums modulo $k$},
     journal = {Colloquium Mathematicum},
     pages = {51--56},
     publisher = {mathdoc},
     volume = {136},
     number = {1},
     year = {2014},
     doi = {10.4064/cm136-1-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm136-1-5/}
}