@article{PORMA_1995__52_1_47427,
     author = {Taylor, Willie E.jun. and Sun, Minghua},
     title = {Oscillation properties of nonlinear difference equations.},
     journal = {Portugaliae mathematica},
     pages = {15--24},
     publisher = {mathdoc},
     volume = {52},
     number = {1},
     year = {1995},
     zbl = {0840.39008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1995__52_1_47427/}
}