@article{10_4064_aa163_4_2,
     author = {Todd Cochrane and Derrick Hart and Christopher Pinner and Craig Spencer},
     title = {Waring's number for large subgroups of $\mathbb Z_{p}^{*}$},
     journal = {Acta Arithmetica},
     pages = {309--325},
     publisher = {mathdoc},
     volume = {163},
     number = {4},
     year = {2014},
     doi = {10.4064/aa163-4-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa163-4-2/}
}