@article{10_4064_fm_67_2_251_254,
     author = {Ashok Maitra},
     title = {Coanalytic sets that are not {Blackwell} spaces},
     journal = {Fundamenta Mathematicae},
     pages = {251--254},
     publisher = {mathdoc},
     volume = {67},
     number = {2},
     year = {1970},
     doi = {10.4064/fm-67-2-251-254},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-67-2-251-254/}
}