@article{GDZPPN002358719,
title = {The approximation property for a pair of Banach spaces.},
journal = {Mathematica Scandinavica},
volume = {56},
year = {1985},
pages = {375-385},
zbl = {0608.46010},
url = {http://dml.mathdoc.fr/item/GDZPPN002358719}
}
Bonder, Elmer. The approximation property for a pair of Banach spaces.. Mathematica Scandinavica, Tome 56 (1985) pp. 375-385. http://gdmltest.u-ga.fr/item/GDZPPN002358719/