@article{bwmeta1.element.desklight-8dc1c6f2-4d19-4185-a091-4ff4cb3ada08,
author = {Ernest P\l onka},
title = {Idempotent words in nilpotent groups},
journal = {Colloquium Mathematicae},
volume = {31},
year = {1974},
pages = {83-85},
zbl = {0279.20029},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-8dc1c6f2-4d19-4185-a091-4ff4cb3ada08}
}
Ernest Płonka. Idempotent words in nilpotent groups. Colloquium Mathematicae, Tome 31 (1974) pp. 83-85. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-8dc1c6f2-4d19-4185-a091-4ff4cb3ada08/