@article{JRAM_1973__0262_0263_151364,
     author = {Saburo Uchiyama},
     title = {On some exponential sums involving divisor functions.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {248--260},
     publisher = {mathdoc},
     volume = {0262_0263},
     year = {1973},
     zbl = {0266.10033},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1973__0262_0263_151364/}
}