@article{00942900,
title = {Projections, extendability of operators and the G\^ateaux derivative of the norm.},
journal = {Journal of Applied Analysis},
volume = {1},
year = {1995},
pages = {29-38},
doi = {10.1515/JAA.1995.29},
zbl = {0864.46002},
language = {en},
url = {http://dml.mathdoc.fr/item/00942900}
}
Gajek, L.; Jachymski, J.; Zagrodny, D. Projections, extendability of operators and the Gâteaux derivative of the norm.. Journal of Applied Analysis, Tome 1 (1995) pp. 29-38. doi : 10.1515/JAA.1995.29. http://gdmltest.u-ga.fr/item/00942900/