@article{KYB_2006_42_2_a1,
     author = {Rie\v{c}anov\'a, Zdenka},
     title = {Archimedean atomic lattice effect algebras in which all sharp elements are central},
     journal = {Kybernetika},
     pages = {143--150},
     year = {2006},
     volume = {42},
     number = {2},
     mrnumber = {2241781},
     zbl = {1249.03121},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2006_42_2_a1/}
}