@article{10_4064_cm_9_2_209_212,
     author = {M. Bleicher and Edward Marczewski},
     title = {Remarks on dependence relations and closure operators},
     journal = {Colloquium Mathematicum},
     pages = {209--212},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1962},
     doi = {10.4064/cm-9-2-209-212},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-9-2-209-212/}
}