@article{MOMA_1996__121_3_178717,
     author = {\"Oystein J. R\"odseth},
     title = {On the {Addition} of {Residue} {Classes} mod p.},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {139--144},
     publisher = {mathdoc},
     volume = {121},
     number = {3},
     year = {1996},
     zbl = {0847.11007},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1996__121_3_178717/}
}