@article{FUNDAM_2003__178_3_283346,
     author = {Krzysztof Ciesielski and Tomasz Natkaniec},
     title = {A big symmetric planar set with small category projections},
     journal = {Fundamenta Mathematicae},
     pages = {237},
     publisher = {mathdoc},
     volume = {178},
     number = {3},
     year = {2003},
     zbl = {1059.03050},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/FUNDAM_2003__178_3_283346/}
}