@article{article945dee25,
title   = {Free symmetric and unitary pairs in the field of fractions of torsion-free nilpotent group algebras},
author = {Ferreira, Vitor de Oliveira and Gonçalves, Jairo Zacarias and Sánchez, Javier},
year = {2020},
doi = {10.1007/s10468-019-09866-8},
journal   = {Algebras and Representation Theory}
}