TY  - JOUR
AU  - D. Suryanarayana
TI  - Super Perfect Numbers.
JO  - Elemente der Mathematik
PY  - 1969
SP  - 16
EP  - 17
VL  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ELMA_1969__24_140912/
ID  - ELMA_1969__24_140912
ER  -