@article{bwmeta1.element.bwnjournal-article-smv40i1p12bwm,
author = {A. Pe\l czy\'nski and P. Wojtaszczyk},
title = {Banach spaces with finite dimensional expansions of identity and universal bases of finite dimensional subspaces},
journal = {Studia Mathematica},
volume = {40},
year = {1971},
pages = {91-108},
zbl = {0221.46014},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv40i1p12bwm}
}
Pełczyński, A.; Wojtaszczyk, P. Banach spaces with finite dimensional expansions of identity and universal bases of finite dimensional subspaces. Studia Mathematica, Tome 40 (1971) pp. 91-108. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv40i1p12bwm/