@article{paperid:1059877,
author = {Karimi, Seyedeh Zakieh and Erfanian, Ahmad and Behnaz Tolue},
title = {n-TH Central Gragh OF A Group},
journal = {Comptes Rendus de L Academie Bulgare des Sciences},
year = {2016},
volume = {69},
number = {2},
month = {June},
issn = {1310-1331},
pages = {135--144},
			numpages = {9},
keywords = {Central graph; Upper central series; Isoclinism},
}