Ruyun Ma, Bianxia Yang, Zhenyan Wang. Positive periodic solutions of first-order delay differential equations with impulses. Applied Mathematics and Computation, 219(11):6074-6083, 2013. [doi]
@article{MaYW13,
title = {Positive periodic solutions of first-order delay differential equations with impulses},
author = {Ruyun Ma and Bianxia Yang and Zhenyan Wang},
year = {2013},
doi = {10.1016/j.amc.2012.12.020},
url = {http://dx.doi.org/10.1016/j.amc.2012.12.020},
researchr = {https://researchr.org/publication/MaYW13},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {219},
number = {11},
pages = {6074-6083},
}