TY  - JOUR
AU  - Sakai, Kazuhiro
TI  - On positively expansive differentiable maps
JO  - Mathematica slovaca
PY  - 1997
SP  - 479
EP  - 482
VL  - 47
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MASLO_1997__47_4_a9/
LA  - en
ID  - MASLO_1997__47_4_a9
ER  -