@article{10_4064_fm213_1_3,
     author = {Christina Brech and Piotr Koszmider},
     title = {On biorthogonal systems whose functionals
 are finitely supported},
     journal = {Fundamenta Mathematicae},
     pages = {43--66},
     publisher = {mathdoc},
     volume = {213},
     number = {1},
     year = {2011},
     doi = {10.4064/fm213-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm213-1-3/}
}