TY  - JOUR
AU  - R.L. Hall
TI  - On Single-Product Functions with Rotational Symmetry.
JO  - Aequationes mathematicae
PY  - 1972
SP  - 281
EP  - 286
VL  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1972__8_136302/
ID  - AM2_1972__8_136302
ER  -