TY  - JOUR
AU  - A. V. Aminova
AU  - N. A.-M. Aminov
TI  - The projective geometric theory of systems of second-order differential equations: straightening and symmetry theorems
JO  - Sbornik. Mathematics
PY  - 2010
SP  - 631
EP  - 643
VL  - 201
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2010_201_5_a0/
LA  - en
ID  - SM_2010_201_5_a0
ER  -