@article{JRAM_1980__317_152259,
     author = {E. Grosswald},
     title = {Arithmetic progressions of arbitrary length and consisting only of primes and almost primes.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {200--208},
     publisher = {mathdoc},
     volume = {317},
     year = {1980},
     zbl = {0422.10043},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1980__317_152259/}
}