@article{10_4064_aa163_1_2,
     author = {P. Moree and P. Stevenhagen},
     title = {Computing higher rank primitive root densities},
     journal = {Acta Arithmetica},
     pages = {15--32},
     publisher = {mathdoc},
     volume = {163},
     number = {1},
     year = {2014},
     doi = {10.4064/aa163-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa163-1-2/}
}