@article{10_1007_s10492_011_0003_6,
     author = {Xu, Jiabo and Teng, Zhidong and Gao, Shujing},
     title = {Almost sufficient and necessary conditions for permanence and extinction of nonautonomous discrete logistic systems with time-varying delays and feedback control},
     journal = {Applications of Mathematics},
     pages = {207--225},
     publisher = {mathdoc},
     volume = {56},
     number = {2},
     year = {2011},
     doi = {10.1007/s10492-011-0003-6},
     mrnumber = {2810244},
     zbl = {1223.92051},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-011-0003-6/}
}