@article{SF_1974__7_134007,
     author = {J.H. Carruth and C.E. Clark},
     title = {H-Coextensions in the category of compact semigroups.},
     journal = {Semigroup forum},
     pages = {164--179},
     publisher = {mathdoc},
     volume = {7},
     year = {1974},
     zbl = {0276.22006},
     url = {http://geodesic.mathdoc.fr/item/SF_1974__7_134007/}
}