@article{MZ_1990__203_3_174123,
     author = {Robert Sine and Michael Lin},
     title = {On the {Fixed} {Point} {Set} of {Nonexpansive} {Order} {Preserving} {Maps.}},
     journal = {Mathematische Zeitschrift},
     pages = {227--234},
     publisher = {mathdoc},
     volume = {203},
     number = {3},
     year = {1990},
     zbl = {0662.47030},
     url = {http://geodesic.mathdoc.fr/item/MZ_1990__203_3_174123/}
}