@article{JRAM_1954__193_150273,
     author = {K. Masuda},
     title = {Hasse factor systems reduced mod ... .},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {161--165},
     publisher = {mathdoc},
     volume = {193},
     year = {1954},
     zbl = {0058.02902},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1954__193_150273/}
}