TY  - JOUR
AU  - D. Suryanarayana
TI  - New Inversion Properties of ... and ...*.
JO  - Elemente der Mathematik
PY  - 1971
SP  - 136
EP  - 137
VL  - 26
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ELMA_1971__26_141033/
ID  - ELMA_1971__26_141033
ER  -