@article{02221320,
title = {Extended contraction principle.},
journal = {APPS. Applied Sciences},
volume = {7},
year = {2005},
pages = {147-152},
zbl = {1081.54511},
language = {en},
url = {http://dml.mathdoc.fr/item/02221320}
}
Razani, Abdolrahman; Aghajani, Asadolah. Extended contraction principle.. APPS. Applied Sciences, Tome 7 (2005) pp. 147-152. http://gdmltest.u-ga.fr/item/02221320/