@article{article6682173d,
title   = {Spontaneous symmetry breaking in noncommutative field theories},
author = {Girotti, H O and Gomes, Marcelo Otávio Caminha and Petrov, A Y and Rivelles, Victor de Oliveira and Silva, Adílson José da},
year = {2003},
doi = {10.1103/physrevd.67.125003},
journal   = {Physical Review D}
}