@article{PORMA_1966__25_4_114989,
     author = {Morgado, Jos\'e},
     title = {Factorization of the lattice of closure operators of a complete lattice},
     journal = {Portugaliae mathematica},
     pages = {181--185},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {1966},
     mrnumber = {0231757},
     zbl = {0163.26205},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1966__25_4_114989/}
}