@article{10_4064_sm_38_1_23_34,
     author = {B. Mitjagin},
     title = {Fr\'echet spaces with a unique unconditional basis},
     journal = {Studia Mathematica},
     pages = {23--34},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1970},
     doi = {10.4064/sm-38-1-23-34},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-38-1-23-34/}
}