TY  - JOUR
AU  - A. V. Aminova
AU  - N. A.-M. Aminov
TI  - Fourth-order differential systems with a four-dimensional solvable symmetry group that does not contain the abelian subgroup $G_3$
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 2005
SP  - 12
EP  - 27
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_2005_6_a1/
LA  - ru
ID  - IVM_2005_6_a1
ER  -