%0 Journal Article
%A Hocine Gabsi
%A Abdelouaheb Ardjouni
%A Ahcene Djoudi
%T Positive periodic solutions of second-order nonlinear neutral differential equations with variable coefficients
%J Mathematica Moravica
%D 2018
%P 69 - 82
%V 22
%N 2
%I mathdoc
%U https://geodesic-test.mathdoc.fr/item/MM3_2018_22_2_a5/
%F MM3_2018_22_2_a5