@article{05274241,
title = {The compositions of differential operations and the G\^ateaux directional derivative.},
journal = {Journal of Integer Sequences [electronic only]},
volume = {10},
year = {2007},
zbl = {1149.05313},
language = {en},
url = {http://dml.mathdoc.fr/item/05274241}
}
Malešević, Branko J.; Jovović, Ivana V. The compositions of differential operations and the Gâteaux directional derivative.. Journal of Integer Sequences [electronic only], Tome 10 (2007) . http://gdmltest.u-ga.fr/item/05274241/