TY  - JOUR
AU  - Peter Li
AU  - Andrejs E. Treibergs
TI  - Pinching Theorem for the First Eigenvalue on Positively Curved Four Manifolds.
JO  - Inventiones mathematicae
PY  - 1982
SP  - 35
EP  - 38
VL  - 66
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1982__66_142867/
ID  - IM_1982__66_142867
ER  -