@article{SF_1984__30_134721,
     author = {W. Ruppert},
     title = {A separately, but not jointly continuous action of a compact semilattice.},
     journal = {Semigroup forum},
     pages = {241--242},
     year = {1984},
     volume = {30},
     zbl = {0554.22001},
     url = {http://geodesic.mathdoc.fr/item/SF_1984__30_134721/}
}