@article{10_4064_fm_48_2_123_126,
     author = {S. Mr\'owka},
     title = {Axiomatic characterization of the family of all clusters in a proximity space},
     journal = {Fundamenta Mathematicae},
     pages = {123--126},
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {1959},
     doi = {10.4064/fm-48-2-123-126},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-48-2-123-126/}
}