@article{10_4064_fm175_1_3,
     author = {Tadeusz Dobrowolski and Witold Marciszewski},
     title = {Failure of the {Factor} {Theorem} for {Borel} {pre-Hilbert} spaces},
     journal = {Fundamenta Mathematicae},
     pages = {53--68},
     publisher = {mathdoc},
     volume = {175},
     number = {1},
     year = {2002},
     doi = {10.4064/fm175-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm175-1-3/}
}