@article{EJDE_2000__2000__a186,
     author = {Fan,  Xianling and Li,  Wan-Tong and Zhong,  Chengkui},
     title = {A classification scheme for positive solutions to second order nonlinear iterative differential equations},
     journal = {Electronic journal of differential equations},
     year = {2000},
     volume = {2000},
     zbl = {0946.34059},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a186/}
}