@article{CLTM_1989_1989_1_a4,
     author = {Fern\'andez, Antonio and Florencio, M. and Pa\'ul, Pedro J. and M\"uller, Vladimir},
     title = {Extensiones de \'algebras topol\'ogicas.},
     journal = {Collectanea mathematica},
     pages = {55-65},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1989_1989_1_a4/}
}