@article{10_4064_fm_50_2_123_128,
     author = {A. Hajnal},
     title = {Proof of a conjecture of {B.} {Ruziewicz}},
     journal = {Fundamenta Mathematicae},
     pages = {123--128},
     publisher = {mathdoc},
     volume = {50},
     number = {2},
     year = {1961},
     doi = {10.4064/fm-50-2-123-128},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-50-2-123-128/}
}