@article{SAF_1973-1974____A21_0,
     author = {Lapreste, J. T.},
     title = {Sous-espaces $l^p_n$ compl\'ement\'es dans un espace \`a base inconditionnelle, d{\textquoteright}apr\`es {L.} {Tzafriri}},
     journal = {S\'eminaire Maurey-Schwartz},
     note = {talk:19},
     pages = {1--15},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1973-1974},
     mrnumber = {405073},
     zbl = {0292.46015},
     language = {fr},
     url = {http://www.numdam.org/item/SAF_1973-1974____A21_0/}
}