@article{10_4064_sm_126_2_161_170,
     author = {A. Goncharov},
     title = {Perfect sets of finite class without the extension property},
     journal = {Studia Mathematica},
     pages = {161--170},
     publisher = {mathdoc},
     volume = {126},
     number = {2},
     year = {1997},
     doi = {10.4064/sm-126-2-161-170},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-126-2-161-170/}
}