@article{10_4064_sm_32_1_95_98,
     author = {Nguyen C\'ac},
     title = {On symmetric {Schauder} bases in a {Fr\'echet} space},
     journal = {Studia Mathematica},
     pages = {95--98},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1969},
     doi = {10.4064/sm-32-1-95-98},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-32-1-95-98/}
}