@article{2646,
author = {Johnson, William B. and Shive, Robert A. jr.},
title = {Linear contraction mappings},
journal = {Portugaliae mathematica},
volume = {30},
year = {1971},
pages = {41-44},
zbl = {0228.47004},
mrnumber = {0305022},
language = {en},
url = {http://dml.mathdoc.fr/item/2646}
}
Johnson, William B.; Shive, Robert A. jr. Linear contraction mappings. Portugaliae mathematica, Tome 30 (1971) pp. 41-44. http://gdmltest.u-ga.fr/item/2646/