Modified gauge-unfixing formalism and gauge symmetries in the noncommutative chiral bosons theory Cleber N. Costa, Gabriella V. Ambrósio, Paulo R. F. Alves, Jorge Ananias Neto and Ronaldo Thibes EPL, 143 3 (2023) 34002 Published online: 25 July 2023 DOI: 10.1209/0295-5075/ace7f2