%0 Journal Article %A Shyam Sundar Santra %T Necessary and Sufficient Condition for Oscillatory and Asymptotic Behaviour of Second-Order Functional Differential Equations %J Kragujevac Journal of Mathematics %D 2020 %P 459 %V 44 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2020_44_3_a10/ %G en %F KJM_2020_44_3_a10