@article{ARM_1973_9_1_a3,
     author = {Chajda, Ivan},
     title = {Extensions of mappings of finite {Boolean} algebras to homomorphisms},
     journal = {Archivum mathematicum},
     pages = {22--25},
     year = {1973},
     volume = {9},
     number = {1},
     mrnumber = {0369203},
     zbl = {0284.06009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1973_9_1_a3/}
}