@article{GDZPPN00125104X,
title = {RESIDUATION IN SEMIGROUPS OF PRE-CLOSURES.},
journal = {Semigroup forum},
volume = {11},
year = {1975},
pages = {328-336},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN00125104X}
}
Boyd, C.A. RESIDUATION IN SEMIGROUPS OF PRE-CLOSURES.. Semigroup forum, Tome 11 (1975) pp. 328-336. http://gdmltest.u-ga.fr/item/GDZPPN00125104X/