TY - JOUR AU - Karakostas, George L. TI - Nonexistence of solutions to some boundary-value problems for second-order ordinary differential equations JO - Electronic Journal of Differential Equations PY - 2012 VL - 2012 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a25/ LA - en ID - EJDE_2012__2012__a25 ER -