@article{EJDE_2004__2004__a4,
     author = {Poetzsche,  Christian and Siegmund,  Stefan},
     title = {A limit set trichotomy for order-preserving systems on time scales},
     journal = {Electronic journal of differential equations},
     year = {2004},
     volume = {2004},
     zbl = {1059.37016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2004__2004__a4/}
}