TY  - JOUR
AU  - Hocine Gabsi
AU  - Abdelouaheb Ardjouni
AU  - Ahcene Djoudi
TI  - Positive periodic solutions of second-order nonlinear neutral differential equations with variable coefficients
JO  - Mathematica Moravica
PY  - 2018
SP  - 69 
EP  -  82
VL  - 22
IS  - 2
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/MM3_2018_22_2_a5/
ID  - MM3_2018_22_2_a5
ER  -