@article{articled6591fa2,
title   = {Essential idempotents and codes of constant weight},
author = {Chalom, Gladys and Ferraz, Raul Antonio and Polcino Milies, Francisco César},
year = {2017},
doi = {10.1007/s40863-017-0074-8},
journal   = {São Paulo Journal of Mathematical Sciences}
}