@article{PORMA_1990__47_4_115723,
     author = {Sobral, Manuela},
     title = {Absolutely closed spaces and categories of algebras},
     journal = {Portugaliae mathematica},
     pages = {341--351},
     publisher = {mathdoc},
     volume = {47},
     number = {4},
     year = {1990},
     mrnumber = {1090472},
     zbl = {0732.18001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1990__47_4_115723/}
}