@article{MM2_1975__15_154319,
     author = {Juhani Nieminen},
     title = {Remarks on {Ideals} in {Join-Semilattices.}},
     journal = {Manuscripta mathematica},
     pages = {251--260},
     publisher = {mathdoc},
     volume = {15},
     year = {1975},
     zbl = {0306.06006},
     url = {http://geodesic.mathdoc.fr/item/MM2_1975__15_154319/}
}