@article{paperid:1032356,
author = {Hejazian, Shirin and Mahdavian Rad, Hussein and Mirzavaziri, Madjid},
title = {sigma,tau-Higher derivations},
journal = {Journal of Advanced Research in Pure Mathematics},
year = {2012},
volume = {4},
number = {4},
month = {April},
issn = {1943-2380},
pages = {67--77},
			numpages = {10},
keywords = {Derivation; (σ; τ )-Derivation; Higher derivation; (σ; τ)-Higher derivation.},
}