@article{10_4064_aa161_4_5,
     author = {Derrick Hart},
     title = {A note on sumsets of subgroups in ${\mathbb Z}_{p}^{*}$},
     journal = {Acta Arithmetica},
     pages = {387--395},
     publisher = {mathdoc},
     volume = {161},
     number = {4},
     year = {2013},
     doi = {10.4064/aa161-4-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa161-4-5/}
}