@article{10_4064_aa135_1_6,
     author = {P\'eter Csikv\'ari},
     title = {Subset sums avoiding quadratic nonresidues},
     journal = {Acta Arithmetica},
     pages = {91--98},
     publisher = {mathdoc},
     volume = {135},
     number = {1},
     year = {2008},
     doi = {10.4064/aa135-1-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa135-1-6/}
}