@article{106188,
author = {David Preiss and Lud\v ek Zaj\'\i \v cek},
title = {On the symmetry of approximate Dini derivates of arbitrary functions},
journal = {Commentationes Mathematicae Universitatis Carolinae},
volume = {023},
year = {1982},
pages = {691-697},
zbl = {0513.26004},
mrnumber = {687564},
language = {en},
url = {http://dml.mathdoc.fr/item/106188}
}
Preiss, David; Zajíček, Luděk. On the symmetry of approximate Dini derivates of arbitrary functions. Commentationes Mathematicae Universitatis Carolinae, Tome 023 (1982) pp. 691-697. http://gdmltest.u-ga.fr/item/106188/
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