@inproceedings{paperid:1006895,
author = {Mashayekhy Fard, Behrooz},
title = {Existence of polynilpotent covering groups of a polynilpotent group},
booktitle = {سی و هشتمین کنفرانس ریاضی ایران},
year = {2007},
location = {زنجان, IRAN},
keywords = {polynilpotent civering groups; polynilpotent group},
}