@article{10_21136_CMJ_1991_102429,
     author = {Romanowska, Anna B. and Smith, J. D. H.},
     title = {On the structure of semilattice sums},
     journal = {Czechoslovak Mathematical Journal},
     pages = {24--43},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {1991},
     doi = {10.21136/CMJ.1991.102429},
     mrnumber = {1087619},
     zbl = {0793.08010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102429/}
}