@article{MS2_1974__34_166341,
     author = {H.G. Meijer},
     title = {Sets of {Primes} with {Intermediate} {Density.}},
     journal = {Mathematica Scandinavica},
     pages = {37--43},
     year = {1974},
     volume = {34},
     zbl = {0285.10028},
     url = {http://geodesic.mathdoc.fr/item/MS2_1974__34_166341/}
}