@article{GDZPPN001257285,
title = {Compactifications of some hyperspace semigroups.},
journal = {Semigroup forum},
volume = {30},
year = {1984},
pages = {263-282},
zbl = {0537.22004},
url = {http://dml.mathdoc.fr/item/GDZPPN001257285}
}
Vasudeva, H.L.; Pym, J.S. Compactifications of some hyperspace semigroups.. Semigroup forum, Tome 30 (1984) pp. 263-282. http://gdmltest.u-ga.fr/item/GDZPPN001257285/