TY  - JOUR
AU  - Anderson,  Douglas R.
TI  - Oscillation and nonoscillation criteria for two-dimensional time-scale systems of first-order nonlinear dynamic equations
JO  - Electronic journal of differential equations
PY  - 2009
VL  - 2009
UR  - http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a9/
LA  - en
ID  - EJDE_2009__2009__a9
ER  -