TY  - JOUR
AU  - Erwin Lutwak
TI  - On the semicontinuity of curvatures.
JO  - Commentarii mathematici Helvetici
PY  - 1992
SP  - 664
EP  - 669
VL  - 67
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1992__67_3_140290/
ID  - CMH_1992__67_3_140290
ER  -