@article{ARM_1980__16_1_a6,
     author = {\v{S}marda, Bohumil},
     title = {Ideal systems of intersection and product type},
     journal = {Archivum mathematicum},
     pages = {59--65},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1980},
     mrnumber = {594668},
     zbl = {0449.20069},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1980__16_1_a6/}
}