TY  - JOUR
AU  - Shader, Leslie E.
TI  - Closed form expressions for several Ramanujan sums
JO  - Portugaliae mathematica
PY  - 1973
SP  - 147
EP  - 153
VL  - 32
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1973__32_3_115202/
LA  - en
ID  - PORMA_1973__32_3_115202
ER  -