@article{10_4064_aa_49_4_387_394,
     author = {J. Pintz},
     title = {Elementary methods in the theory of {L-functions.} {IX.} {Density} theorems},
     journal = {Acta Arithmetica},
     pages = {387--394},
     publisher = {mathdoc},
     volume = {49},
     number = {4},
     year = {1987},
     doi = {10.4064/aa-49-4-387-394},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-49-4-387-394/}
}