@article{paperid:1006584,
author = {Mashayekhy Fard, Behrooz and  -,  -},
title = {On polynilpotent covering groups of a polynilpotent group},
journal = {International Journal of Mathematics, Game Theory and Algebra},
year = {2006},
month = {March},
issn = {1060-9881},
keywords = {$\\\\\\\\\\\\\\\\cal V$-covering group;
polynilpotent groups; solvable-group.},
}