@article{10_21136_CMJ_1977_101490,
     author = {Pym, John S. and Vasudeva, Harkrishan L.},
     title = {Semigroup structure in compactifications of ordered semigroups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {528--544},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {1977},
     doi = {10.21136/CMJ.1977.101490},
     mrnumber = {0492045},
     zbl = {0383.06005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1977.101490/}
}