TY  - JOUR
AU  - Gaoyong Zhang
TI  - A positive solution to the Busemann-Petty problem in \(\mathbb{R}^4\)
JO  - Annals of mathematics
PY  - 1999
VL  - 149
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.2307/120974/
DO  - 10.2307/120974
ID  - 10_2307_120974
ER  -