TY - JOUR AU - Dix, Julio G. AU - Ghose, Dillip Kumar AU - Rath, Radhanath TI - Oscillation of a higher order neutral differential equation with a sub-linear delay term and positive and negative coefficients JO - Mathematica Bohemica PY - 2009 SP - 411 EP - 425 VL - 134 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2009.140673/ DO - 10.21136/MB.2009.140673 LA - en ID - 10_21136_MB_2009_140673 ER -