@article{10_4064_cm_71_1_47_53,
     author = {Marek Balcerzak},
     title = {Generalized projections of {Borel} and analytic sets},
     journal = {Colloquium Mathematicum},
     pages = {47--53},
     publisher = {mathdoc},
     volume = {71},
     number = {1},
     year = {1996},
     doi = {10.4064/cm-71-1-47-53},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-71-1-47-53/}
}