TY - JOUR AU - Tyagi, Jagmohan TI - An oscillation theorem for a second order nonlinear differential equations with variable potential JO - Electronic Journal of Differential Equations PY - 2009 VL - 2009 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a113/ LA - en ID - EJDE_2009__2009__a113 ER -