TY  - JOUR
AU  - Robert Osserman
TI  - A note on Hayman's theorem on the bass note of a drum.
JO  - Commentarii mathematici Helvetici
PY  - 1977
SP  - 545
EP  - 556
VL  - 52
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1977__52_139713/
ID  - CMH_1977__52_139713
ER  -